# a0.dev vs bolt.diy

a0.dev is freemium — a usable free tier with paid plans above it. bolt.diy is free, with no paid plan attached.

| | a0.dev | bolt.diy |
|---|---|---|
| Pricing | Free tier + paid plans | Free |
| Free to start | Yes | Yes |
| Category | Code & Development | Code & Development |
| Type | App Builders & Vibe Coding | App Builders & Vibe Coding |
| Best for | Real-time AI agent that writes/edits a mobile app as you describe it | Community fork of Bolt.new that lets you pick any LLM provider |

## FAQ

### a0.dev vs bolt.diy: what is the difference?

a0.dev is freemium — a usable free tier with paid plans above it and is listed for real-time AI agent that writes/edits a mobile app as you describe it. bolt.diy is free, with no paid plan attached and is listed for community fork of Bolt.new that lets you pick any LLM provider. Both sit in App Builders & Vibe Coding.

### Is a0.dev or bolt.diy cheaper to start with?

bolt.diy is the cheaper starting point: it is free, with no paid plan attached, while a0.dev is freemium — a usable free tier with paid plans above it. Pricing tiers here come from the catalog, not from a promotional page.

### Which should I choose, a0.dev or bolt.diy?

Choose a0.dev if you need real-time AI agent that writes/edits a mobile app as you describe it; choose bolt.diy if you need community fork of Bolt.new that lets you pick any LLM provider. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.

## Related

- [a0.dev](https://aitools.flocci.in/tool/a0-dev)
- [bolt.diy](https://aitools.flocci.in/tool/bolt-diy)
- [a0.dev alternatives](https://aitools.flocci.in/alternatives/a0-dev)
- [bolt.diy alternatives](https://aitools.flocci.in/alternatives/bolt-diy)
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Source: Flocci AI Tools — https://aitools.flocci.in/compare/a0-dev-vs-bolt-diy

Facts last verified: October 2026