Mobile-first builder · Ranked 30 of 37
a0.dev
Mobile apps from a chat window, iterated faster than anything else here
Specification
| Category | Mobile-first builder |
|---|---|
| Founded | 2025 |
| Cheapest paid plan | 18 EUR |
| Free tier | Yes |
| Pricing model | Free tier with daily limits, paid plans from about 18 EUR per month |
| Official site | a0.dev |
| Community ratings | 4 |
| Last verified | |
| Next scheduled check |
Capabilities
| Capability | Status |
|---|---|
| Full-stack backend | Partial, hosted basics |
| Database included | Yes, simple hosted store |
| Auth included | Yes, basic |
| Code export | Yes, Expo project |
| GitHub sync | One-way push |
| One-click deploy | Yes, Expo preview |
| Custom domain | Not applicable |
| Mobile or native output | Native iOS and Android via Expo |
| Team collaboration | No |
| Public API or MCP server | No |
| Self-hosting the output | Yes, after export |
Axis scores
- Reliability16%
- 3.6
- Integrations16%
- 3.0
- SEO and GEO13%
- 2.4
- Design quality12%
- 4.0
- Agent performance10%
- 4.2
- Speed9%
- 4.6
- Value9%
- 4.0
- Scalability7%
- 2.9
- API and MCP access5%
- 2.8
- Code ownership3%
- 3.8
Every axis is scored from 0 to 5 stars. The percentage is that axis's published weight in the overall 3.5 rating.
Interface
Our assessment in one line
The tightest iteration loop in the index. a0.dev applies a small change and shows it on your phone faster than anything else we tested, taking 4.6 on speed and 4.2 on agent performance. It is also the thinnest product here: integrations at 3.0, no meaningful API, scalability at 2.9, and a feature set that assumes you are one person prototyping. Excellent for the first two days of an idea. Plan to move somewhere else by week three.
The full review has the verdict, the dissenting view and 4 user ratings