How to Build an App in 2026: Paths, Tools and Steps

How to Build an App: The Short Answer

With Superapp or another AI builder, you build an app by describing it and letting the tool write the code; with any other path, you assemble the same five parts yourself (screens, logic, data, accounts, and device features) and get them running on a phone. The four build paths are an AI builder (Superapp, Replit, Lovable), native code (Xcode with Swift, Android Studio with Kotlin), cross-platform code (Flutter, React Native with Expo), and a no-code builder (FlutterFlow, Adalo, Bubble). The path you pick decides what you install, what you have to learn, and how far the app can grow. Native code (Swift on Apple devices, Kotlin on Android) gets each platform's newest features first, and an app only succeeds once people find it, so this guide also covers why native matters and how to get your first users.

Quick answer: how do you build an app? Superapp and other AI builders let you describe the app while the tool writes the code; Superapp writes native Swift and compiles it on cloud Macs, so you do not need a Mac. With native code, you use Xcode and Swift for iPhone (Mac required) or Android Studio and Kotlin for Android. With cross-platform code, Flutter or React Native with Expo gives you one codebase for both stores. With no-code, tools like FlutterFlow, Adalo, or Bubble let you drag screens together. Then build in this order: one core screen, data, accounts, device features, then test on a real phone. Publishing costs 99 USD a year for Apple and a 25 USD one-time fee for Google Play. Whatever the path, you still have to test the app yourself before anyone else sees it, and then get users through App Store search, Apple Ads, short videos, and a website, which Superapp's Selfdrive agent can run for iOS apps.

This guide is about the build itself. If you want the full beginner route from idea to a published app, read how to make an app. If you want to turn the app into a business, read how to create an app.

The Whole Build on One Page

Superapp builds follow the same stages as every other path; only the tool doing each stage changes. This table is the map for the rest of the guide.

What Is an App Made Of?

Every mobile app, from a to-do list to a ride-sharing app, is built from the same five parts. Knowing them makes every build path easier to understand, because each tool is just a different way of making these parts.

A simple app might use only screens, logic, and on-device data. A social app uses all five, plus a server that many users share. The more parts you need, the more your choice of build path matters.

What Are the Four Ways to Build an App?

There are four build paths, and they differ in who writes the code, which platforms you get, and how much control you keep.

The lines between paths are blurring. Many AI builders now output code that a developer can open later, and Superapp exports a standard Xcode project. That matters, because the biggest risk of any shortcut path is getting stuck when the app outgrows the tool.

Each Build Path, Pick It or Skip It

Superapp and the other paths each have one strong reason to choose them and one strong reason to look elsewhere. Read the row for the path you are leaning toward.

Which Build Path Should You Pick?

Answer four questions and the right path usually becomes obvious.

1. Can you code, or do you want to learn? If you already code, native or cross-platform code gives you the most control. If you do not, an AI builder or no-code builder gets you to a working app without a programming course first.
2. Which phones does the app need on launch day? If it is iPhone (and iPad, Watch, or Mac), a native Swift path fits, either written by you in Xcode or generated by Superapp. If you need iPhone and Android on day one, Flutter or React Native with Expo covers both from one codebase.
3. How much device access does the app need? Widgets, Live Activities, Apple Watch, background location, and heavy camera use work best natively. Simple forms and lists work on every path.
4. What happens if the app succeeds? If you might hire a developer later, pick a path that hands over real code. Superapp exports Xcode projects, and Flutter and React Native code is yours by default. Some no-code tools keep the app locked inside their platform.

Which Path Fits Who You Are?

Superapp is built for the first row in this table, and the other rows explain when a different path is the better match for the person building.

Which Path Fits Which Kind of App?

Superapp covers most consumer app types on Apple devices; the table shows where each path is strongest by the kind of app you are building.

Which Path Builds for Which Device?

Superapp targets Apple's devices; this table shows which path reaches each device from one project.

What Does "Native" Mean, and Why Does It Matter?

Superapp builds native apps, and so do Xcode and Android Studio: a native app is written in the language and interface toolkit that the platform maker designed for its own devices. On Apple devices, that means Swift and SwiftUI. On Android, it means Kotlin and Jetpack Compose. Everything else is a layer on top: a cross-platform framework that translates one codebase into both platforms, or a web page wrapped inside an app.

The difference matters because Apple and Google ship their newest features for their own languages first. When Apple redesigns the system, adds a new widget type, or opens its on-device AI model to developers, native Swift apps can use it the day it ships. Cross-platform apps wait for the framework to catch up, or add native code to reach it.

A native app is not automatically a good app, and a cross-platform app is not automatically a bad one. Native is the version with the fewest layers between your app and the phone, which is why it is the default choice when an app depends on the platform's newest features or has to feel exactly like the rest of the system.

Why Build Your iPhone App in Native Swift?

Superapp generates Swift for the same reasons professional iOS teams write it by hand: Swift is the language Apple builds its own frameworks around, and every major Apple feature since SwiftUI arrived has been designed for it. Here are the six reasons that matter most when you build.

1. Your app picks up Apple's design changes automatically

When Apple redesigned its platforms around the Liquid Glass material, apps built with standard system components did not have to be redesigned. Apple's adoption guide says: "If your app uses standard components from SwiftUI, UIKit, or AppKit, your interface picks up the latest look and feel on the latest platform releases for iOS, iPadOS, macOS, tvOS, and watchOS." The same guide says standard bars, sheets, popovers, and controls "automatically adopt this material" (Apple Developer: Adopting Liquid Glass).

That is the practical meaning of native: Apple does part of your design work every year, as long as your app uses Apple's own building blocks.

2. Widgets, Live Activities, and Watch apps are Swift-first

Apple's WidgetKit framework covers widgets, watch complications, Live Activities, and controls, and Apple's documentation describes building them with "WidgetKit and SwiftUI" and presenting content "with SwiftUI views" (Apple Developer: WidgetKit). Live Activities, which show live updates on the Lock Screen and in the Dynamic Island, use ActivityKit. Controls, the buttons and toggles in Control Center and on the Action button, are described with the App Intents framework.

These are the features that make an app feel like part of the iPhone instead of a box you open. They are also the features that cross-platform teams most often write in Swift anyway, as Shopify's engineering team describes later in this guide.

3. Apple's on-device AI is a Swift framework

Apple's Foundation Models framework gives apps access to "the on-device and Private Cloud Compute models designed for Apple Intelligence." It lets an app "Generate entire Swift data structures with guided generation" using the @Generable macro, and lets the model call tools you define inside your app (Apple Developer: Foundation Models). On-device models can summarize text, extract details, understand images, and generate content without sending the request to a server you pay for. Apple notes that people need a device that supports Apple Intelligence to use these models.

For an app builder, this means AI features with no API bill and no user data leaving the phone, available directly from Swift.

4. The app behaves the way iPhone users expect

Native components carry years of Apple's work on accessibility and behavior. Apple's Liquid Glass guide notes that when people turn on settings that reduce transparency or motion, "If you use standard components from system frameworks, this experience adapts automatically." Text size, VoiceOver, dark mode, the back-swipe gesture, and keyboard behavior all come from the system instead of being recreated by a framework.

5. Fewer layers means fewer things to break

Every layer between your code and the phone is another thing to update, debug, and keep compatible. Airbnb, which built part of its app in React Native before returning to native in 2018, summed up the cost in one line: "we wound up supporting code on three platforms instead of two" (Airbnb Engineering). Airbnb's full story is below, along with the fair counterpoint that cross-platform tools have improved since.

6. App Review favors real apps, not wrapped websites

Apple's App Review Guidelines say under minimum functionality: "Your app should include features, content, and UI that elevate it beyond a repackaged website" (App Review Guidelines, 4.2). A native Swift app built from system components is, by construction, the opposite of a repackaged website. It does not exempt you from review, but it removes one common reason for rejection.

Which Apple Features Need Native Swift?

Superapp builds these features inside one native Swift project. On other paths, each one means writing Swift by hand or waiting for a framework to support it.

Why Build Your Android App in Native Kotlin?

Superapp writes native Swift for Apple devices; for Android, the native equivalent is Kotlin in Android Studio, and Google has been clear that this is the route it recommends. Here are the reasons.

1. Google builds Android around Kotlin

Google's Android team announced in 2019 that "Android development will be increasingly Kotlin-first," and says today: "If you're looking to build an Android app, we recommend starting with Kotlin to take advantage of its best-in-class features" (Android Developers: Kotlin-first). Google also says Kotlin is "used by over 60% of professional Android developers" (Android Developers: Kotlin).

2. Jetpack Compose is Google's recommended interface toolkit

Google calls Jetpack Compose "Android's recommended modern toolkit for building native UI," and adds that Compose is built on Kotlin (Android Developers: Compose). Compose works much like SwiftUI: you describe what the screen should show, and the toolkit draws it and updates it when the data changes.

3. Fewer crashes, according to Google

Google states that "Android apps that use Kotlin are 20% less likely to crash" (Android Developers: Kotlin). The page does not publish its method, so treat this as Google's own claim. The reason Google gives is concrete: Kotlin builds nullability into its type system, which "helps you avoid NullPointerExceptions," one of the most common causes of Android crashes.

4. Android's on-device AI is reached through native APIs

Google's on-device model, Gemini Nano, runs in an Android system service called AICore. Google says Gemini Nano "lets you deliver rich generative AI experiences without needing a network connection or sending data to the cloud," and that developers reach it through "ML Kit's GenAI APIs," which cover tasks such as summarization, proofreading, rewriting, and image description (Android Developers: Gemini Nano). Google also notes on-device constraints, including token limits and hardware differences between phones.

5. Android users notice Android conventions

Android has its own back navigation, its own design system (Material), its own widgets, and its own watch platform (Wear OS). A native Kotlin app follows those conventions by default. A cross-platform app has to reproduce them, and small differences, like a back button that behaves like iPhone's, are what make an app feel imported.

6. Most of the Android world already speaks Kotlin

Google lists apps built with Kotlin "from the hottest startups to Fortune 500 companies," and lists Compose users including Airbnb, Lyft, Reddit, Square, and Dropbox. Kotlin skills are what Android teams hire for, which matters if you plan to hand the app to a developer later.

Native Swift and Native Kotlin, Side by Side

Superapp handles the Apple column of this table without Xcode or a Mac. The Android column is Google's own stack.

The Same Screen in SwiftUI and Jetpack Compose

Superapp writes SwiftUI code like the first example below for you. Seeing both side by side shows how similar the two native toolkits have become: you describe a list, and the system draws it.

A plant list in SwiftUI (iPhone, iPad, Mac, Apple Watch):

import SwiftUI

struct PlantListView: View {
    let plants = ["Monstera", "Fern", "Cactus"]

    var body: some View {
        NavigationStack {
            List(plants, id: \.self) { plant in
                Text(plant)
            }
            .navigationTitle("Plants")
        }
    }
}

The same list in Jetpack Compose (Android):

@Composable
fun PlantList() {
    val plants = listOf("Monstera", "Fern", "Cactus")

    LazyColumn {
        items(plants) { plant ->
            Text(text = plant)
        }
    }
}

In both cases, the navigation bar, scrolling, text size, and dark mode come from the platform. That is the core idea of native development: you write what is specific to your app, and the system supplies everything that should behave the same as every other app on the phone.

What Do You Give Up With Cross-Platform Instead of Native?

Superapp users get the native column for Apple devices. This table shows where the other approaches differ, so you can decide whether the trade is worth it for your app.

The honest summary: cross-platform saves you a second codebase, and native saves you the layer in between. If your app needs both stores on day one and lives mostly in lists, forms, and feeds, the saving is real. If it depends on widgets, the Watch, on-device AI, or the newest system look, native is the shorter road.

When Is Cross-Platform Still the Right Call?

Superapp is native by design, but cross-platform is the right choice for many teams, and this section makes that case fairly.

Shopify moved every one of its apps to React Native and reports screen loads under 500 milliseconds at the 75th percentile and crash-free sessions above 99.9% (Shopify Engineering). Reflection.app shipped iOS, Android, macOS, and web from one Flutter codebase with two developers (Flutter showcase). Both prove that cross-platform can be fast and reliable when the team invests in it.

There is also a middle path. Kotlin Multiplatform lets a team share business logic, such as data handling and networking, between Android and iOS while each platform keeps its own interface. Google "announced official support for shared logic across Android and iOS" at Google I/O 2024 and says plainly: "This is why we recommend KMP" (Android Developers Blog).

Cross-platform is usually the right call when:

• You need iPhone and Android on launch day and have one small team.
• Your team already knows JavaScript and React, or Dart.
• The app is mostly lists, forms, feeds, and content, with few platform-only features.
• A consistent look across platforms matters more to you than matching each platform's system design.

Native is usually the right call when:

• Your users are mostly on one platform.
• The app depends on widgets, Live Activities, the Watch, on-device AI, or deep system integration.
• You want the app to look and behave exactly like the rest of the phone, including future design changes.
• You want to hire from the largest pool of platform specialists.

What Airbnb Learned Going Back to Native

Superapp's choice to generate native Swift reflects a lesson that large teams learned the expensive way. Airbnb's is the best-documented example.

In June 2018, Gabriel Peal, an engineer at Airbnb, published "Sunsetting React Native" on Airbnb's engineering blog. Airbnb had adopted React Native to move faster and share code between iPhone and Android. Engineers wrote about 80,000 lines of product code across 220 screens in it, plus 40,000 lines of JavaScript infrastructure. But React Native covered only a small share of the app, and the team ended up maintaining the bridge between both worlds. In Peal's words: "we wound up supporting code on three platforms instead of two." The conclusion: "we are sunsetting React Native at Airbnb and reinvesting all of our efforts back into native" (Airbnb Engineering).

The fair reading has two sides. Airbnb's post describes React Native as it was at the end of 2017, and the framework has changed a great deal since, as Shopify's results show. The post also reports that 60% of Airbnb's React Native engineers described their experience as amazing. The lasting lesson is not "cross-platform is bad." It is that mixing a framework into an existing native app adds a third platform to maintain, and that a team should pick one approach and commit to it.

Do You Need to Learn Swift or Kotlin to Get a Native App?

Superapp gives you a native Swift app without learning Swift. For native Kotlin, you either learn it, work with an AI coding tool inside Android Studio, or hire an Android developer.

The AI coding route is real, as the stories of Tom Wentworth and Soner Yıldırım in this guide show, but it still leaves you running the build, signing, and error loop yourself. A builder that compiles and fixes errors for you removes that step.

Native App Myths, Checked

Superapp users ask about these myths often. Each one has a short, checkable answer.

What Do You Need Before You Start Building?

The setup is different for each path. The biggest single difference is whether you need a Mac.

According to Apple's App Store listing for Xcode, the current version needs macOS 26.6 or later and a Mac with Apple silicon. Apple's membership comparison says a free Apple Account lets you test on your own devices, with limits: up to 3 devices per platform, and builds that expire after 7 days. To publish, you join the Apple Developer Program at 99 USD a year. Google charges a 25 USD one-time registration fee.

How Do You Build an App, Step by Step?

The build order below works on every path. It keeps you from spending a week on the settings screen while the main feature is still broken.

1. Write the one job the app does. One sentence, like "remind me when each plant needs water." Everything that does not serve that job waits.
2. List the screens. Most first versions need three to six: a main list, a detail view, an add or edit screen, and settings.
3. Build the core screen first. Get the main screen working with fake data before touching anything else. In Superapp you describe it; in Xcode you write it in SwiftUI; in a no-code tool you drag it onto the canvas.
4. Connect real data. Decide what is stored on the phone and what lives on a server. Start on-device if the app is personal; add a backend only when users need to share data or sync across devices.
5. Add accounts if you need them. Personal apps often skip sign-in entirely. Shared apps need it, and if you offer third-party sign-in on iPhone, plan for Sign in with Apple.
6. Add device features one at a time. Notifications, camera, location, payments. Test each one before adding the next, because each adds permissions and failure points.
7. Test on a real phone. Simulators miss real-world problems like slow networks, small screens, and permission prompts. Use your own device, then a few friends.
8. Prepare the release build. App icon, screenshots, privacy details, and a signed build. The App Store publishing guide covers this part in detail.

What Does Each Build Step Look Like on Each Path?

Superapp, code, and no-code tools do the same steps in different ways. This is the same build order, path by path.

How Do You Build an App With Native Code?

Superapp generates native Swift for you; this section is about writing native code yourself. Native means writing the app in the language each platform was designed for: Swift for Apple devices and Kotlin for Android. You get the best performance and the newest system features first, but you maintain a separate codebase for each platform.

For iPhone, you install Xcode on a Mac, create a new project, and build the interface in SwiftUI. Apple describes SwiftUI as declarative, meaning you state what your user interface should do and the framework handles the drawing. You run the app in the iOS Simulator or on your own iPhone over a cable.

For Android, you install Android Studio and write Kotlin. Google's position is clear: for a new Android app, it recommends starting with Kotlin. The interface toolkit is Jetpack Compose, which works much like SwiftUI.

The trade-off is learning time. You need to learn a language, a UI framework, the platform's rules, and the build tools. That is the right investment if you want a career in app development or full control over a complex app. It is a slow route if you only want one app shipped.

How Do You Build an App With Cross-Platform Code?

Superapp targets Apple devices natively; if you need iPhone and Android from one codebase, cross-platform code is the route. Cross-platform frameworks let you write one codebase and ship it to both iPhone and Android. The two leaders are Flutter, from Google, and React Native, from Meta.

Flutter uses the Dart language and draws its own interface. Its site says one codebase can target mobile, web, desktop, and embedded devices. React Native uses JavaScript or TypeScript, and the React Native team now says that using a framework like Expo is now the recommended approach to create new apps.

Both are widely used. The Pragmatic Engineer, citing Appfigures data, reports that about 11% of apps released in 2024 used Flutter and about 7% used React Native, and that React Native apps earned slightly more revenue.

Two caveats. First, building the iPhone version still involves Apple's tools: Flutter's iOS setup runs through Xcode on a Mac, and Expo's docs note that you need Xcode only to create a build on your own computer, with cloud builds as the alternative. Second, newer Apple features like widgets and Live Activities often need native Swift code added alongside the shared code.

Even large teams that go cross-platform keep some native code. Shopify, which moved all of its apps to React Native, still writes native code for widgets, Apple Watch apps, Siri Shortcuts, on-device AI models, and long-running background syncing.

How Do You Build an App Without Code?

Superapp is an AI builder rather than a drag-and-drop tool, and both let you build without writing code. No-code builders replace code with a visual editor. You drag screens together, connect a database, and set up actions like "when this button is tapped, save the form."

FlutterFlow builds on Flutter and can export code. Adalo focuses on simple mobile apps with a built-in database. Bubble started as a web app builder and has added mobile. Each has a free tier to try and paid plans to publish.

No-code works well for apps that are mostly forms, lists, and records: a booking app for a small business, an internal tool, a directory. It struggles when the app needs custom logic, heavy device features, or a polished native feel. The ceiling is the tool itself: if the builder does not support something, you usually cannot add it. Compare options in our no-code app builders review.

How Do You Build an App With AI?

AI builders write the code for you from a description. You type what the app should do, the tool generates screens and logic, and you refine it by asking for changes in plain English. This is sometimes called vibe coding.

As a disclosure, Superapp and its growth agent, Selfdrive, are our products, so weigh this accordingly. Superapp builds native Swift apps for iPhone, iPad, Apple Watch, and Mac. It compiles them on real Macs in its cloud, reads any build errors, fixes them, and rebuilds before showing you the result, so you do not need your own Mac. You can install the app on your iPhone to test it, connect Superapp Cloud or your own Supabase project for data, add StoreKit or RevenueCat for payments, and export the full Xcode project to keep or hand to a developer. It starts with free credits, then 25 USD a month on Pro. It is focused on Apple devices today, so if Android on launch day is a requirement, Flutter or React Native with Expo is the better fit.

Other AI builders take different routes. Replit and Lovable are strongest at web apps and can reach mobile through frameworks like Expo. AI coding tools such as Cursor and Claude Code write code inside a project you manage yourself, usually alongside Xcode. General chat assistants can write code snippets, but you still have to assemble, build, and run the project yourself, which is covered in can ChatGPT build an app.

The honest limit of every AI builder: generated code still needs testing. The AI can produce an app that looks right and fails on an edge case, like an empty list or a lost connection. Use the app the way a real user would before you ship it.

How Do You Write Prompts That Build a Good App?

Superapp and every other AI builder respond better to specific instructions than to wishes. The pattern below works across tools.

One request at a time is slower to type and faster to finish, because each change can be tested before the next one changes the code again.

How Do You Build the Backend?

The backend is the server side: the shared database, user accounts, and anything that has to happen when the phone is off. Many first apps do not need one. If your app only stores data for one person on one phone, on-device storage is enough.

Pick the backend before you build the screens that depend on it, because switching later means rewriting how the app saves and loads data.

When Does an App Need a Backend?

Superapp apps, like apps on every other path, only need a server for specific jobs. If none of these apply, keep the data on the phone.

Can You Build an iPhone App Without a Mac?

Yes, but not with Xcode on your own machine, because Xcode runs only on macOS. There are three practical routes.

The first is a builder that compiles in the cloud. Superapp compiles native Swift on cloud Macs from any browser. The second is Expo's cloud builds for React Native apps, which run the Mac part on Expo's servers; Expo notes that its hosted iOS Simulator is still a limited-access preview. The third is renting a remote Mac and running Xcode on it over the internet.

You still need an Apple Developer Program membership to publish, whichever route you take. Our guide on making an iPhone app on Windows goes deeper on each option.

How Do You Build Native Apple Features Like Widgets and Watch Apps?

Superapp generates widgets, Live Activities, and Apple Watch apps as part of the same native Swift project. On other paths, these features are where cross-platform and no-code tools hit their limits.

If your app idea depends on one of these features, choose a path that builds native Swift from the start. Adding it later to a non-native app usually means maintaining two kinds of code.

How Do You Test an App While You Build It?

Superapp builds install straight onto your iPhone; on every path, test in three layers, from fastest to most realistic.

On iPhone, Apple's TestFlight is the standard way to hand a build to other people. On Android, plan for Google's rule for new personal accounts: a closed test with at least 12 testers opted in for 14 days before you can apply for production. The how to make an app guide covers TestFlight setup in detail.

How Do You Fix Common Build Problems?

Superapp reads and fixes build errors for you. On code paths, these are the problems people hit most often, and the usual fix.

What Does Each Path Ask You to Learn?

Every path has a learning curve. The difference is what you learn.

If you want to become an app developer, learn native or cross-platform code. If you want to ship an app, the faster paths let you spend your time on the product instead of the toolchain.

What Does the Build Cost on Each Path?

Superapp has one subscription that covers the build; other paths are free to build but charge in time, tools, or both. Store fees are the same everywhere.

For full budgets including design, marketing, and hiring, see how much it costs to make an app.

Six Real People and Teams Who Built Apps, Path by Path

Superapp users follow the same arc these builders describe: pick a path, ship one core version, then grow it. Each story below comes from the builder's own write-up or an interview, and each one shows a different path.

Christian Selig built Apollo as a solo native iOS developer

Christian Selig interned at Apple during university, then built Apollo, a Reddit client for iPhone, on his own. According to RevenueCat's interview with him, Apollo launched in 2015, he maintained it alone for close to a decade, and it reached about 5 million installs before he shut it down in June 2023, after Reddit introduced API charges. He used the app himself daily and took feature requests from a community of users. His rule for choosing projects: he does not start one "unless I'm confident it's something I care about."

What it shows about building: native iOS development rewards depth. A single person, with no team, built one of the best-known third-party apps on the platform. The lesson for anyone building on someone else's data is also clear: Apollo depended on Reddit's API, and when the terms changed, the app could not continue.

Shopify moved all of its apps to React Native

Shopify wanted to stop building every feature twice, once for iPhone and once for Android. In a five-year retrospective, Mustafa Ali, Shopify's Director of Engineering, writes that all of the company's apps now run on React Native, with screen loads under 500 milliseconds at the 75th percentile and crash-free sessions above 99.9%. The post quotes CEO Tobi Lutke: "not all fast software is great, but all great software is fast."

What it shows about building: cross-platform code works at very large scale, and it still leaves room for native code. Shopify writes native code for widgets, Apple Watch apps, Siri Shortcuts, on-device AI models, and offline syncing in its point-of-sale app.

Reflection.app shipped a journaling app on four platforms with two developers

Reflection.app started as a web-only JavaScript prototype. According to Flutter's case study, the team moved to Flutter with two full-time developers and shipped iOS, Android, macOS, and web from one codebase. The company reports that its development speed roughly doubled, mobile engagement reached twice the level of web, and monthly journal entries rose fivefold. Co-founder David Radparvar says: "What we have built would never have been possible without Flutter."

What it shows about building: when a small team needs many platforms, a single codebase is the difference between shipping and not shipping.

Qoins built a funded fintech app on Bubble

Qoins helped users pay down credit card and student debt by rounding up spare change from purchases. According to No-Code Exits, co-founder and CTO Nate Washington built the prototype on Bubble, and the company raised about 750,000 USD in a first round, 1.5 million USD in a second round in 2021, and a 100,000 USD Google for Startups award. Some parts, including a native mobile app, later moved to hand-written code, but the write-up says Bubble "continued to serve as the backbone of the business."

What it shows about building: a no-code backend can carry a real company. For balance, Qoins stopped operating in June 2023 after problems during a bank migration, which had nothing to do with its build tools but is a reminder that a working app is not the same as a working business.

Tom Wentworth built an iPhone app with an AI coding tool and no Swift

Tom Wentworth, the marketing lead at incident.io, says he has never written a real line of Swift. In his own write-up, he describes using Claude Code to write a Swift app that showcases his company's products, with Xcode to run it. The first build failed with many errors. He did not debug them himself; he pasted each error back into the AI until the build succeeded. Getting from a working app to "Waiting for Review" took him about 45 minutes. His opening line is honest about the motive: "no one asked for this."

What it shows about building: AI writes the code, but the builder still runs the loop of build, read the error, fix, and rebuild. A tool that runs that loop for you, the way Superapp does, removes the step that stops most non-developers.

Soner Yıldırım built Brush Tracker in three days without Swift experience

Soner Yıldırım had no app development or Swift experience. In his article for Towards Data Science, he describes building Brush Tracker, an app that scores how consistently you brush your teeth, in three days. He tried Lovable and Anything first, then used Cursor to write the code and Xcode to run and submit it, and the app was approved for the App Store. Along the way, he hit a reward screen that showed an empty quote on the first tap and a picker that ignored taps. His main lesson: "Get the first version up and running before adding features."

What it shows about building: the build order in this guide is what working builders actually do. Core version first, then one feature at a time.

What the Builders Have in Common

Superapp's build order is drawn from patterns like these, and every story above shares them, whatever the path.

• They built something they or their users needed every day, not a feature list.
• They shipped a first version before adding features.
• They chose the path that fit their situation: Selig knew iOS, Shopify needed two platforms at scale, Reflection.app had two developers, and Qoins and the two AI builders had no coding background.
• They hit errors and kept going. Nobody in these stories had a clean first build.
• They kept the option to grow. Shopify still writes native code where it matters, and Qoins added hand-written code when it needed a native app.

Worked Example: Building a Plant Watering App

Superapp, Swift, Flutter, and no-code tools would all build this app from the same plan. Here is the build order applied to a simple app that reminds you when each plant needs water.

The one job: "Tell me which plant to water today." The screens: a plant list sorted by next watering date, a plant detail screen with a photo and schedule, an add-plant screen, and settings.

The core screen comes first: the plant list, with three fake plants, sorted by date. Data stays on the phone, because only one person uses it. There are no accounts, since the app is personal. Device features come next, one at a time: the camera for plant photos, then local notifications for watering reminders. Each gets tested on a real iPhone before the next one goes in.

In Superapp, each of those rows is one request, tested on your phone before the next. On native Swift, it means a SwiftUI list, on-device storage, and Apple's notification framework. On Flutter, it means a list widget, a local storage package, and a notifications plugin. In a no-code tool, it means a list component, the built-in database, and the tool's notification block, if it has one. The parts are the same on every path.

Only after it works for you do you add version-two ideas, like syncing between devices, which is the point where a backend becomes worth adding.

Build Mistakes to Avoid

Superapp builders and hand coders make the same mistakes during the build. These are the most common.

• Building every feature before testing one. Ship the core screen to your own phone first.
• Choosing a path by price alone. A cheap tool that cannot export your app can cost more later.
• Adding a backend you do not need yet. On-device data is simpler and works offline.
• Testing only in the simulator. Real phones show permission, network, and layout problems that simulators hide.
• Picking Android and iPhone at once without a reason. One platform done well beats two done badly. If you need both, use a cross-platform framework, not two separate projects.
• Building on data you do not control. Apollo's story shows what happens when another company changes its API terms.
• Asking an AI tool for many changes at once. One change per request is easier to test and easier to undo.
• Ignoring Google Play's testing rule. New personal accounts need a 14-day closed test with 12 testers before production, so plan for it.

App Build Terms, Defined

Superapp, Xcode, and every other tool use the same vocabulary. These are the terms you will meet while building.

How Do You Get Users After You Build the App?

Superapp's Selfdrive agent exists because building the app is only half the job: an app nobody finds earns nothing, and most new apps are never found. The numbers are sobering. RevenueCat's State of Subscription Apps 2025, which covers more than 75,000 apps, found that "most apps fail to garner $1,000 in monthly revenue within their first two years" (TechRepublic on RevenueCat's report). The same report found that the top 5% of newly launched apps earn $8,880 after two years, more than 400 times the bottom 25%, who earn $19 or less, and that the median revenue per install across apps is $0.31 after 60 days (RevenueCat).

The gap between those groups is rarely the code. It is whether people can find the app, understand it in a few seconds, and come back. Getting users is a build step of its own, and it starts before launch day.

The good news is that the App Store is a search engine with a huge audience. Apple says "Over 850 million people visit the App Store every week," that "70% of App Store visitors use search to discover apps," and that "Almost 65% of downloads happen directly after a search" (Apple Ads). The search figures are from 2022, but they explain why most of the work below is about being found in search.

Which Channels Bring Users to a New App?

Superapp's Selfdrive covers four of the channels below with one agent. The others are worth knowing, because the right mix depends on your app and your budget.

Most first apps should start with the cheapest channels that compound: ASO and a website. Paid channels make sense once you know the app keeps the users it gets.

How Do You Do App Store Optimization?

Superapp's Selfdrive ASO agent drafts these listing fields for your approval; if you do it by hand, you edit them in App Store Connect or the Google Play Console. Either way, the rules and limits are the same.

Apple's own guidance on keywords is precise: "Keywords are limited to 100 characters total, with terms separated by commas and no spaces" (Apple Developer: Product page). On screenshots, Apple notes that "the first one to three images will appear in search results when no app preview is available, so make sure these highlight the essence of your app." Google's advice for Play listings is equally direct: "Users may only read the first few sentences" (Google Play Console Help).

A simple ASO process for a new app:

1. List the words people would type to find an app like yours. Think about the problem, not your brand: "watering reminder," "plant care," "plant tracker."
2. Put the most important phrase in the name, the next in the subtitle, and the rest in the keyword field. Do not repeat words across the three fields on the App Store, since they all count.
3. Make the first three screenshots explain the app without the description. One benefit per screenshot.
4. Ship the listing, wait long enough to collect data, then compare impressions, product page views, and conversion before and after.
5. Change one thing at a time where you can, so you know what worked.

The honest limit: ASO decides how well you compete for searches that exist. It cannot create demand for an app nobody is looking for, which is why checking search demand belongs before the build, not after.

How Do Apple Ads Work for a New App?

Superapp's Selfdrive Apple Ads agent runs campaigns inside your own Apple Ads account; whether you use it or run ads yourself, the mechanics are the same. Apple Ads places your app at the top of App Store search results for keywords you choose. Apple says ads there deliver "an average conversion rate of over 60% for those at the top of search results," measured as tap-through installs across its markets from November 2024 to October 2025 (Apple Ads). In Apple Ads Advanced, you pay per tap, and the price depends on competition for each keyword.

How to start sensibly with Apple Ads:

• Begin with a small daily budget and a short list of specific keywords that describe exactly what your app does.
• Run a campaign for your app's own name as well, so competitors do not take the top spot when people search for you.
• Watch cost per install alongside what users do after installing. A cheap install that never opens the app twice is not cheap.
• Use what converts in ads to choose words for your listing, since the same searches drive organic downloads.

The honest limit: ads buy visibility, not product fit. Selfdrive's own page puts it plainly: "A bid or an install is not a guarantee of revenue." Apple Ads also does not run in every country.

How Do You Get Users With UGC and Short Videos?

Superapp's Selfdrive UGC agent runs creator campaigns for TikTok and Instagram Reels; without it, you find creators, brief them, review videos, and pay them yourself. UGC (user-generated content) means real people filming themselves using your app, in the style of everyday short videos rather than polished ads.

What makes UGC work is the first two seconds of each video, called the hook, and the volume of tries. Most videos get few views, and a few get many, so a campaign is a series of tests rather than one big bet. Cal AI, below, is the best-known example of short video and creators driving an app's growth.

Do You Need a Website for Your App?

Superapp generates a website for your app, and Selfdrive's website and SEO agent can add articles to it. You need a site for three reasons: the App Store asks for a support URL and a privacy policy URL, people search Google before they search the App Store, and AI assistants like ChatGPT cite web pages when they recommend apps.

The honest limit: search engines and AI assistants decide what to index and cite. Selfdrive's page says it "cannot guarantee that an AI service will index, cite or recommend your app." Websites are a slow channel that compounds, not a launch-week switch.

How Do You Get Your First 100 Users?

Superapp builders and every other new app face the same cold start: no reviews, no rankings, and no word of mouth yet. A simple four-week plan gets you through it.

The first users matter more for what they teach you than for the number. Ask each early user one question: what nearly made you stop using the app? Fixing that answer is the best growth work you can do before spending on ads.

Which Numbers Should You Watch After Launch?

Superapp's Selfdrive sends a daily report with downloads, ad spend, creator activity, and items waiting for your approval. If you track by hand, App Store Connect and the Google Play Console show most of the same numbers.

Read conversion and retention together. Low conversion with good retention means the listing undersells the app. High conversion with poor retention means the listing oversells it, or the first session disappoints.

How Does Selfdrive Get Users for Your App?

Superapp's Selfdrive is an AI marketing agent for iOS apps. It runs four channels (Apple Ads, ASO, UGC, and website and SEO), plans its work from your App Store Connect analytics, and emails a daily report of downloads, overnight tasks, ad spend, creator activity, recommendations, and items waiting for your approval (Selfdrive).

How it works in practice:

• You connect an app you own, either by pasting its App Store link or by connecting App Store Connect. It works with apps built in Superapp and apps built anywhere else, and you do not transfer ownership of the app.
• Listing changes, creator briefs, and each creator video need your approval. Within a budget and campaign you have approved, the agent adjusts bids and keywords without asking about each change.
• You can turn each channel on or off. Pausing stops new work but does not undo published changes or charges already incurred.
• Selfdrive is labeled beta. A free growth plan is available by pasting your App Store link, and the Superapp Max plan at 100 USD a month includes all four channels, the daily report, and 230 credits a month. Apple ad spend and creator fees are billed separately.

What it does not do, by its own description: it does not guarantee a growth timeline, Apple Ads does not run in every country, the ASO workflow does not produce screenshots, and it works with iOS apps. Its page also notes that a traditional agency may suit you better for bespoke creative production or brand strategy beyond the four channels.

Three Real Apps and How They Got Users

Superapp's Selfdrive automates the same channels these apps used. Each story comes from the company's own statements or a named publication.

Cal AI grew with TikTok videos and influencers

Cal AI is a calorie tracker that logs food from a photo. According to Fortune, co-founder Zach Yadegari launched it in May 2024 with three co-founders, and the company brings in about 30 million USD a year, a figure Fortune says it confirmed with financial records. Yadegari describes the turning point simply: "We started making TikToks, we started partnering with influencers, and then we had pretty explosive growth."

What it shows: an app whose value is visible in a few seconds, like pointing a phone at a plate, is made for short video. If your app's main moment can be filmed, UGC is worth testing early.

Reading Eggs used Apple Ads to reach parents in search

Reading Eggs, an app that teaches children to read, ran separate Apple Ads campaigns for each market, with brand campaigns and discovery campaigns to find new keywords, and built custom product pages to match specific ad groups. According to Apple's case study, the result was a 52% increase in US trial sign-ups, 42% of total yearly iOS downloads coming from Apple Ads in the US, UK, and Australia, and a 50% lower cost per install than similar platforms in Australia over six months. Emilee O'Reilly, the company's acquisition marketing manager, says: "Apple Ads remains one of the top platforms to grow both brand awareness and iOS installs in our main regions."

What it shows: search ads work best when the ad, the keyword, and the product page all say the same thing. For balance, Reading Eggs is an established education brand, so a brand-new app should expect smaller numbers while it learns which keywords convert.

ReelMeal renamed its app around what people search

ReelMeal turns cooking videos into recipes. Its developer, Peter Sutarik, changed the App Store name from "ReelMeal: Recipe Keeper" to "Video to Recipe AI: ReelMeal" with the subtitle "Recipe Saver & Grocery List." In his write-up, US conversion rose from 0.19% to 0.45% and first-time US downloads over 30 days went from 10 to 19, while the app climbed to number 10 for "video to recipe." He is candid about the limits: "The numbers are small and the test wasn't clean," because he changed several things, including Apple Ads, at about the same time. The write-up is published on the blog of the ASO tool he used.

What it shows: the name and subtitle are the most powerful words on your listing. Leading with the phrase people search for, rather than a brand nobody knows yet, can change conversion quickly, even at small scale.

Growth Mistakes to Avoid

Superapp builders see these mistakes most often after launch, and none of them are about code.

• Waiting until the app is perfect to start on users. The listing, the website, and the first testers can all start before launch.
• Naming the app for the brand instead of the search. A new brand has no search volume; a clear phrase does.
• Spending on ads before the app keeps users. Paid installs into an app with poor retention cost money twice.
• Running every channel at once by hand. Pick one or two, or use an agent that runs several, and measure.
• Judging UGC on one video. Short video is a numbers game; judge a campaign, not a post.
• Ignoring reviews. Early reviews shape both conversion and what you should fix next.
• Expecting a guaranteed timeline. No tool, agency, or agent can promise downloads; what you can control is how fast you test and learn.

What Comes After the Build?

Superapp gets you from idea to a native app, and Selfdrive takes over the growth work once it is live. For the publishing steps in between, see how to publish an app to the App Store. For the native versus cross-platform decision in more depth, see native Swift vs React Native with Expo. For turning the app into a business, see how to create an app, and for a full playbook on acquisition, see how to get users for your app.

Frequently Asked Questions

How do I build an app with no experience?
Start with an AI builder such as Superapp, or a no-code builder such as Adalo or FlutterFlow. Build one core screen, test it on your phone, then add features one at a time. You can learn code later if the app grows.

Do I need to know how to code to build an app?
No. AI builders write the code from your description, and no-code builders replace code with a visual editor. You do need to know how to test an app and describe what it should do clearly.

Do I need a Mac to build an iPhone app?
You need a Mac to run Xcode, which is Apple's tool for building iPhone apps. You can avoid owning one by using a builder that compiles in the cloud, such as Superapp, Expo's cloud builds for React Native, or a rented remote Mac.

What is the best language to build an app?
Swift for iPhone and other Apple devices, and Kotlin for Android, since those are the languages Apple and Google build their tools around. Dart (Flutter) or JavaScript (React Native) are the choices if you want one codebase for both platforms.

Should I build for iPhone or Android first?
Build for the platform your users actually carry. If you do not know, start with one platform and add the second once the app proves useful. Use a cross-platform framework if you need both on launch day.

How much does it cost to build an app?
Building can cost nothing in tools if you code it yourself with free software like Xcode or Android Studio. Publishing costs 99 USD a year for Apple and a 25 USD one-time fee for Google Play. AI and no-code builders add a monthly subscription; Superapp starts with free credits, then 25 USD a month.

Can I build an app for free?
You can build and test an app for free with Xcode and a free Apple Account, Android Studio, Flutter, or the free tiers of many builders. Publishing to the stores is where the fees start.

What is the difference between building an app and making an app?
They mean the same thing to most people. This guide focuses on the build itself, meaning the parts of an app and the tools for each path. The guide on how to make an app covers the full journey from idea to published app.

Can I build an app with AI?
Yes. Superapp builds native iPhone apps from a description, and tools like Replit and Lovable build web apps that can reach mobile through frameworks. AI coding tools like Cursor and Claude Code write code inside a project you manage in Xcode. You still need to test what the AI produces.

Is Flutter or React Native better for building an app?
Both are mature. Flutter uses Dart and draws its own interface; React Native uses JavaScript and suits teams that already know React. Appfigures data shows Flutter in more new apps and React Native apps earning slightly more revenue.

Can one person build an app alone?
Yes. Christian Selig built and ran Apollo on his own for close to a decade, and non-developers like Soner Yıldırım and Tom Wentworth have shipped iPhone apps alone with AI tools.

How do I build an app that works on iPhone and Android?
Use a cross-platform framework such as Flutter or React Native with Expo, which builds both from one codebase, or a no-code builder that publishes to both stores. You will still need Apple's tools or a cloud build service for the iPhone version.

Do I need a backend to build an app?
Only if users share data, sync across devices, or the app needs a secret key on a server. A personal app that stores data for one person on one phone can keep everything on the device.

What is the hardest part of building an app?
For most first-time builders, it is getting from a working screen to a build that runs reliably on a real phone: signing, permissions, and errors. AI tools that read build errors and rebuild for you remove much of that step.

Can I build an iPhone widget or Apple Watch app without code?
Most no-code builders do not support widgets or Watch apps. Superapp generates them as part of a native Swift project. Otherwise, you build them in Xcode with WidgetKit and a watchOS target.

What should I build first in an app?
The one screen that does the app's main job, with fake data. Add real data, accounts, and device features only after that screen works on your phone.

Can I move my app to a developer later?
Yes, if your path gives you real code. Superapp exports a standard Xcode project, and Flutter and React Native projects are yours. Some no-code tools keep the app inside their platform, so check before you build.

How do I test an app before publishing?
Install it on your own phone first, then share it with a few people through TestFlight on iPhone or a closed test on Google Play. New Google Play personal accounts need 12 testers for 14 days before production.

Why is native Swift important for an iPhone app?
Swift is the language Apple builds its frameworks around. Native Swift apps pick up system design changes automatically when they use standard components, and they can use widgets, Live Activities, Apple Watch, and Apple's on-device Foundation Models directly. Superapp generates native Swift so you get this without learning the language.

Why is native Kotlin important for an Android app?
Google recommends Kotlin for new Android apps, builds its Jetpack Compose interface toolkit on it, and says Kotlin is used by over 60% of professional Android developers. Google also states that Android apps using Kotlin are 20% less likely to crash.

Is native better than Flutter or React Native?
Native gives you the full feature set and system behavior of each platform; Flutter and React Native give you one codebase for both stores. Native is the better fit when the app depends on platform features like widgets or on-device AI, and cross-platform is the better fit when you need both stores on day one with one small team.

Which tool builds a native Android app?
Android Studio with Kotlin and Jetpack Compose is Google's recommended route. Superapp builds native Swift for iPhone, iPad, Apple Watch, and Mac, so for a native Android app you would use Android Studio, an AI coding tool inside it, or an Android developer.

What is Kotlin Multiplatform?
Kotlin Multiplatform lets a team share business logic, like data and networking code, between Android and iOS while each platform keeps its own interface. Google announced official support for it at Google I/O 2024 and recommends it for shared logic.

How do I get users for my app after building it?
Start with App Store optimization and a website, since both are low cost and compound over time. Add Apple Ads and short creator videos once you know the app keeps the users it gets. Superapp's Selfdrive agent runs all four channels for iOS apps, with your approval on budgets and changes.

What is App Store optimization?
App Store optimization (ASO) means choosing your app's name, subtitle, keywords, description, and screenshots so it ranks in store search and converts visitors into downloads. On the App Store, the name and subtitle are each limited to 30 characters and the keyword field to 100 characters.

How much do Apple Ads cost?
There is no fixed price. In Apple Ads Advanced you pay per tap, and the cost depends on competition for each keyword. You set the budget, and you can start small and pause at any time.

What is Selfdrive?
Selfdrive is Superapp's AI marketing agent for iOS apps. It runs Apple Ads, App Store optimization, UGC creator campaigns, and a website with SEO content, and sends a daily report of downloads, spend, and items waiting for your approval.

Does Selfdrive work with apps not built in Superapp?
Yes. Selfdrive works with any App Store app you own, whether you built it in Superapp or elsewhere. You connect it with your App Store link or App Store Connect, and you keep ownership of the app.

How long does it take to get users for a new app?
It depends on the channel. Apple Ads can deliver installs within days of starting, ASO changes need weeks of data, and websites and SEO take months to be indexed and rank. No tool can guarantee a timeline.

References

• Apple Developer: Choosing a Membership
• Xcode on the Mac App Store
• Apple Developer: SwiftUI
• Android Developers: Kotlin-first
• Google Play Console Help: Registration fee
• Google Play Console Help: Testing requirements for new personal accounts
• Flutter: Multi-platform
• Flutter docs: iOS setup
• Flutter showcase: Reflection.app
• React Native blog: Use a framework to build React Native apps
• Expo docs: Work without a Mac
• The Pragmatic Engineer: Cross-platform mobile development
• Shopify Engineering: Five years of React Native at Shopify
• RevenueCat: Christian Selig, Apollo, Sub Club podcast
• No-Code Exits: How a no-code fintech startup raised 2 million USD
• Tom Wentworth: Vibe coding an iOS app and deploying to the App Store
• Towards Data Science: I built an iOS app in 3 days with no prior Swift knowledge
• Apple Developer: Adopting Liquid Glass
• Apple Developer: WidgetKit
• Apple Developer: Foundation Models
• Apple: App Review Guidelines
• Apple Developer: Creating your product page
• Apple Ads: Advanced
• Apple Ads: Reading Eggs success story
• Android Developers: Kotlin
• Android Developers: Jetpack Compose
• Android Developers: Gemini Nano
• Android Developers Blog: Kotlin Multiplatform shared module templates
• Google Play Console Help: Store listing best practices
• Airbnb Engineering: Sunsetting React Native
• RevenueCat: The State of Subscription Apps 2025
• TechRepublic: Most apps fail to hit 1,000 USD monthly revenue within two years
• Fortune: Cal AI founder Zach Yadegari
• Sonar blog: ReelMeal app title case study
• Superapp: Selfdrive
• Superapp: How to make an app
• Superapp: How to create an app