# a0.dev

Real-time AI agent that writes/edits a mobile app as you describe it. a0.dev is freemium — a usable free tier with paid plans above it, at a0.dev.

## Facts

- **Pricing tier:** Free tier + paid
- **Works on:** Web, iOS, Android
- **Works in browser:** Yes
- **Sign-up:** Google sign-in

## Capabilities

- Real-time AI agent that writes/edits a mobile app as you describe it
- One-click publishing handles App Store Connect listing and upload
- Built-in Convex/Supabase backend plus payments and analytics dashboard

## FAQ

### What is a0.dev?

a0.dev is listed under App Builders & Vibe Coding, in the Code & Development category on Flocci AI Tools. Real-time AI agent that writes/edits a mobile app as you describe it. It is freemium — a usable free tier with paid plans above it, and it lives at a0.dev.

### Is a0.dev free?

a0.dev is freemium: there is a free tier you can work in and paid plans above it. It is one of 429 freemium tools in the catalog, all labelled the same way so you are never surprised by a paywall.

### Can I use a0.dev in a browser, or is there an app?

a0.dev works in a normal browser tab with no install. It is available on the web, iOS and Android. You can sign in with a Google account.

### What can a0.dev do?

a0.dev does 3 things the catalog singles out: Real-time ai agent that writes/edits a mobile app as you describe it; one-click publishing handles app store connect listing and upload; built-in convex/supabase backend plus payments and analytics dashboard.

### What is the best free alternative to a0.dev?

Cloudflare VibeSDK is the closest free alternative: it sits in the same App Builders & Vibe Coding sub-category and is free. bolt.diy, Amazon PartyRock and Base44 also start free. The full list is on the alternatives page.

## Related

- [a0.dev alternatives](https://aitools.flocci.in/alternatives/a0-dev)
- [App Builders & Vibe Coding](https://aitools.flocci.in/category/code-development/app-builders-vibe-coding)
- [Best free AI app builders and vibe-coding platforms](https://aitools.flocci.in/best/best-app-builders-vibe-coding)
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Source: Flocci AI Tools — https://aitools.flocci.in/tool/a0-dev

Facts last verified: October 2026