Head to head
Rork vs a0.dev (2026)
Rork takes the overall rating, but this pairing is decided on axes rather than totals: Rork leads 7 of the ten, a0.dev leads 3.
Rork
Prompt to a native mobile app, and it mostly works
3.6out of 5
The fastest route from an idea to something running on your own phone. Rork scored 4.1 on agent performance and 4.5 on speed, both strong, and the React Native output looks current rather than templated. It is young: complex state handling breaks down, scalability at 3.1 reflects that, and credit pricing means an expensive week if you iterate hard. As a prototyping tool for mobile it is the most exciting thing in this cohort. Treat production claims cautiously.
- Price from
- 22 EUR
- Best for
- Founders who want a credible native app prototype on a real device the same afternoon
- Ratings
- 5
a0.dev
Mobile apps from a chat window, iterated faster than anything else here
3.5out of 5
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.
- Price from
- 18 EUR
- Best for
- Rapid mobile prototyping where the loop between an idea and seeing it matters more than anything else
- Ratings
- 4
What each one looks like
Axis by axis
The leader on each axis is set in bold. The weight column is what that axis contributes to the overall rating, so a win on reliability counts for more than five times a win on code ownership.
| Axis | Weight | Rork | a0.dev | Leader |
|---|---|---|---|---|
| Reliability | 16% | 3.7 | 3.6 | Rork |
| Integrations | 16% | 3.3 | 3.0 | Rork |
| SEO and GEO | 13% | 2.5 | 2.4 | Rork |
| Design quality | 12% | 4.2 | 4.0 | Rork |
| Agent performance | 10% | 4.1 | 4.2 | a0.dev |
| Speed | 9% | 4.5 | 4.6 | a0.dev |
| Value | 9% | 3.8 | 4.0 | a0.dev |
| Scalability | 7% | 3.1 | 2.9 | Rork |
| API and MCP access | 5% | 3.0 | 2.8 | Rork |
| Code ownership | 3% | 3.9 | 3.8 | Rork |
| Overall, weighted | 100% | 3.6 | 3.5 | Rork |
Axis definitions and the full weighting are on how we review. Both tools last verified 14 August 2026.
Where the capabilities differ
| Capability | Rork | a0.dev |
|---|---|---|
| Full-stack backend | Partial, hosted backend | Partial, hosted basics |
| Database included | Yes, basic hosted store | Yes, simple hosted store |
| Auth included | Yes | Yes, basic |
| Code export | Yes, Expo project on paid plans | Yes, Expo project |
| GitHub sync | One-way push | One-way push |
| One-click deploy | Yes, Expo preview and store builds | Yes, Expo preview |
| Custom domain | Not applicable | Not applicable |
| Mobile or native output | Native iOS and Android via Expo | Native iOS and Android via Expo |
| Team collaboration | Limited | No |
| Public API or MCP server | No | No |
| Self-hosting the output | Yes, after export | Yes, after export |
Shaded rows are the ones where the two differ.
What each one costs
Rork
Free trial credits, paid plans from about 22 EUR per month
| Plan | Price |
|---|---|
| Free | Free |
| Starter | 22 EUR |
| Pro | 88 EUR |
a0.dev
Free tier with daily limits, paid plans from about 18 EUR per month
| Plan | Price |
|---|---|
| Free | Free |
| Pro | 18 EUR |
Which one should you choose
Pick Rork if your project looks like founders who want a credible native app prototype on a real device the same afternoon. Its strongest axes in this pairing are reliability, integrations, seo and geo. Avoid it for production apps with complex state, and anyone who dislikes credit-based pricing.
Pick a0.dev if your project looks like rapid mobile prototyping where the loop between an idea and seeing it matters more than anything else. Its strongest axes here are agent performance, speed, value. Avoid it for anything that needs integrations, or a team, or a roadmap.
And the dissenting notes, which we publish rather than average away: on Rork, The data editor wanted a lower value mark, noting that credit consumption in our tests implied a real monthly cost well above the advertised 22 EUR for anyone iterating seriously. On a0.dev, One panellist argued the scalability mark punishes a tool for not attempting something it explicitly does not sell, and that prototyping tools need their own axis weighting.
Frequently asked
- Is Rork better than a0.dev?
- On our weighted overall rating, Rork scores higher: 3.6 for Rork against 3.5 for a0.dev. Axis by axis it is closer than that sounds. Rork leads 7 of the ten axes, a0.dev leads 3, and 0 are tied. The right choice depends on which axes you weight, not on which total is larger.
- Which is cheaper, Rork or a0.dev?
- Rork starts at 22 EUR and a0.dev starts at 18 EUR. Compare the pricing models rather than the entry price: Rork bills as free trial credits, paid plans from about 22 eur per month and a0.dev bills as free tier with daily limits, paid plans from about 18 eur per month.
- Can I move a project from Rork to a0.dev?
- Only as far as code export allows. On the code ownership axis Rork scores 3.9 and a0.dev scores 3.8 out of five, which reflects how much of the running application you can take with you and whether it still works once moved.
- Which one is better for search visibility?
- On the SEO and GEO axis, which we weight at 13 percent, Rork scores 2.5 and a0.dev scores 2.4. That axis covers server rendered content, per route titles and canonicals, and whether the output is legible without JavaScript.