Build for free. $7 when you ship.
The AI runs on your own OpenAI key, so building costs you only OpenAI's own token price, with 0% commission from us. Builder Pro at $7 a month unlocks the signed APK and AAB.
The whole builder, with the AI running on your own OpenAI account.
- 0% commission on AI tokens
- You pay OpenAI's own price
- Key stays in your browser
- Templates, live preview, edit mode
- No credits, no limits
Everything in Build, plus your app as real files for phones and Google Play.
- Unlimited signed APK builds
- AAB files for Google Play
- Your own signing key, backed up
- Install with a QR code
- Cancel anytime
Prices in US dollars; taxes may be added at checkout. Builder Pro renews monthly until cancelled and payments are final — see the refund policy. You get Builder Pro in the builder after signing in with Google.
Classroom, bootcamp or agency? Talk to us.
What you pay for
No credits and no markup. You pay OpenAI for the AI, and us only when you want the app files.
| What | Who you pay |
|---|---|
| AI building and changing your app | OpenAI, at their own price, on your own key (0% commission) |
| Templates, live preview, edit mode, design pickers | Free |
| Signed APK and AAB builds | Builder Pro, $7/month |
| Your signing key and backups | Included with Builder Pro |
Your OpenAI key is saved only in your browser and sent straight to OpenAI. It never reaches our servers.
Pricing questions
Why do I need my own OpenAI key?
So you pay for AI at cost. The builder sends requests from your browser straight to OpenAI on your own account: you pay OpenAI's own token price and we add 0% commission. There are no credits to buy and no limits on how much you build.
Is my OpenAI key safe?
Your key is saved only in your browser on the device you use, and it is sent only to OpenAI. It never reaches our servers. You can remove it from Settings in the builder at any time, and you can also set a spending limit for the key in your OpenAI account.
How much will OpenAI charge me?
It depends on how big your app is and how many changes you ask for. You see every cent in your own OpenAI usage dashboard, and you can set a monthly limit there.
What does Builder Pro include?
Unlimited signed APK builds to install on phones, AAB files for Google Play, and your own signing key with backups, for $7 a month. Building and previewing with AI stays free on your own key.
Can I cancel Builder Pro?
Yes, anytime, from Settings in the builder or the link in your receipt email. Builder Pro stays on until the end of the paid month.
How do I buy?
Open the builder, sign in with Google and tap Get your app. Checkout is handled by our payment provider.
Can I get a refund?
No. Builder Pro is a digital subscription that starts the moment you pay, so payments are final, including renewals. You can build and preview your whole app for free first, so you know it is right before you subscribe. Billing mistakes such as a duplicate charge are always corrected. See the refund policy.
Start building for free
Add your OpenAI key and build your whole app. Upgrade to Builder Pro only when you want the APK and AAB.
Start building Free to build on your own OpenAI key · Builder Pro $7/month for APK & AAB