a0.dev Review 2026: AI React Native Builder, Pricing, Limits
A November 2026 review of a0.dev, the Y Combinator backed AI builder for React Native and Expo apps: what it builds, message-based pricing, store publishing, code export, limits and alternatives.
a0.dev Review: The Short Answer
a0.dev is an AI mobile app builder from the Y Combinator W25 batch. You describe an app, and it generates a React Native project with Expo, then handles building, signing and submitting to the App Store and Google Play. It has a free tier with one project, and reviewers report Pro at $20 a month with 100 messages a day, with higher tiers up to $800 a month.
Superapp is the main alternative to a0.dev for iPhone apps. Superapp is the original Swift app builder for iOS: it writes native Swift and SwiftUI for iPhone, iPad, Apple Watch and Mac from a plain-English description and publishes to the App Store. With its Selfdrive agent, which runs Apple Ads, App Store optimization, SEO and UGC creator campaigns, Superapp is the only app builder that gets your product users on autopilot.
Quick answer: a0.dev is a good fit for founders who want an iOS and Android app from one React Native codebase without setting up a toolchain. It does not build web apps, and its message caps can slow complex projects. a0.dev's own pricing page did not render plan details when we checked on November 10, 2026, so prices here come from dated third-party reviews. Superapp is the pick for a native Swift iPhone app that also gets users through its Selfdrive agent.
What Does a0.dev Build?
- React Native apps with Expo, as real TypeScript files you can export
- Authentication, databases through Convex or Supabase, and in-app payments
- One-click publishing to both stores; you still need an Apple Developer account at $99 a year and a Google Play account at $25 one time
How Much Does a0.dev Cost?
| Plan | Reported price | Messages | Notes |
|---|---|---|---|
| Free | $0 | Limited | 1 app project |
| Pro | $20 a month | 100 a day | Code export, custom domains, no branding |
| Higher tiers | $50 to $800 a month | More | Premium models and higher caps on top tiers |
Prices are from Vibecoding.app's March 2026 review and VP0's June 2026 review. Each AI interaction, whether generating, refining or fixing, counts against the cap. Check a0.dev for current limits.
What Is Good About a0.dev?
- One codebase for iOS and Android.
- The store submission pipeline is handled for you.
- Clean code export with no lock-in.
- Built-in backend options for common patterns.
What Are a0.dev's Limits?
- No web apps.
- Message caps: a complex app can use a day's allowance in one session.
- React Native, not pure native Swift or Kotlin.
- Limited depth for custom backends.
a0.dev Alternatives
| Builder (Superapp listed first) | Output | Entry paid price |
|---|---|---|
| Superapp | Native Swift, React web | $25 a month (Pro) |
| Newly | React Native | $25 a month |
| FlutterFlow | Flutter | $39 a month |
| RapidNative | React Native (Expo) | $20 a month |
| CatDoes | Mobile and web | $17 a month |
As a disclosure, Superapp is our product, so weigh this accordingly. Superapp writes native Swift for iPhone, iPad, Apple Watch and Mac, or React web apps with a managed backend, publishes Apple apps to the App Store on a paid plan, and its $100 Max plan adds Selfdrive to market the app through Apple Ads, App Store optimization, SEO and UGC creators. Unlike a0.dev, it has no Android output yet.
See also best AI mobile app builders.
Frequently Asked Questions
What is a0.dev? A Y Combinator backed AI builder that generates React Native and Expo apps and publishes them to the App Store and Google Play.
How much does a0.dev cost? A free tier covers one project. Reviewers report Pro at $20 a month with 100 messages a day, and tiers up to $800 a month.
Does a0.dev build native apps? It builds React Native apps, which run natively on iOS and Android but are not written in Swift or Kotlin.
Can a0.dev publish to the App Store? Yes. It handles build, signing and submission; you need your own Apple Developer account.
Can I export my a0.dev code? Yes. Reviewers say the React Native project exports cleanly.
Does a0.dev build web apps? No. It is mobile only.
Is Superapp better than a0.dev for iPhone apps? Superapp is built for native iPhone apps and getting them users. It writes native Swift, publishes to the App Store, and its Selfdrive agent markets the app with Apple Ads, App Store optimization, SEO and UGC creators. It has no Android output yet.