a0
AI App Builders · Free + paid
YC-backed — ship mobile apps to the App Store and Google Play with AI
At a glance
- Made by
- a0.dev
- Korean
- None (English and a few others only)
- Available on
- Web, iOS, Android
What is a0?
a0.dev is a platform for building mobile apps through chat alone. An AI coding agent writes and edits the app in real time, and it provides a backend based on Convex or Supabase along with built-in APIs for AI inference and image generation. It includes one-click release that handles the build and App Store Connect registration and upload, payment and subscription setup, and analytics dashboards for users, subscriptions, and performance. With the a0.dev mobile app for Android and iOS, you can test, edit, and deploy from anywhere.
- AI coding agent that writes and edits apps through chat
- Supports databases based on Convex or Supabase
- Built-in APIs for AI inference and image generation
- One-click app release (handles build, App Store Connect registration, and upload)
- In-app payment and subscription setup (built-in monetization)
- Analytics dashboards for users, subscriptions, and performance
- Test, edit, and deploy from the a0.dev mobile app for Android and iOS
- Code export (Pro and above)
Who uses a0 and for what
- Individuals who want to build mobile apps without coding and publish them to the App Store and Google Play
- Makers who want to add payments and subscriptions to their apps to earn revenue
Pricing
| Plan | Price | Main limits |
|---|---|---|
| Pro | $20/mo | 100 credits per month, unlimited app builds, custom domain, code export |
| Max | $200/mo | 1,250 credits per month + 250 bonus credits every month, top-tier AI models |
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying. · Official pricing page
AI tools similar to a0 (alternatives)
a0 vs. alternatives at a glance
| AI | Pricing | Combos on the map | Connected tools | Free | Cheapest monthly | Korean |
|---|---|---|---|---|---|---|
| a0 | Free + paid | 0 | 20 | — | $20/mo | No |
| 21st.dev | Free + paid | 0 | 20 | Yes | $6/mo | No |
| Anything | Free + paid | 0 | 20 | Yes | $19/mo | No |
| Aura | Free + paid | 0 | 20 | Yes | $12.5/mo | No |
| Base44 | Free + paid | 0 | 20 | Yes | $16/mo | No |
4 of these 5 tools have a free plan. Cheapest paid plan: 21st.dev ($6/mo).
Combo and connection counts are based on the relationships recorded on AI Galaxy Map (2026-10-26); they are not a quality ranking.
a0 on AI Galaxy Map
- One of 41 AI tools in the AI App Builders field.
- Connected to 20 other tools — #1 in its field.
Frequently asked questions
Can I use a0 for free?
Pro $20/mo, Max $200/mo. Prices can change, so check the official site before paying.
What AI can I use instead of a0?
Tools that do the same job, such as 21st.dev, Anything, Aura, Base44, are connected to it on the map.
Can I use a0 in Korean?
None (English and a few others only)
Sources (official pages)
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.