Start building your Flutter app — free
Join founders and indie makers shipping real, store-ready apps with an AI Flutter engineer. No credit card, no setup, no dev team.
Create your Builder account
One click to your workspace. Describe an app and watch Builder write real Flutter, live.
Sign up freeYou'll continue on our secure login — hosted on builder.ui.pe. We never see or store your password.
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Everything you need to ship, from day one
Builder is your AI Flutter engineer. Describe the app you want in plain language and Builder plans the screens, writes the Dart, manages state, and shows you a live preview — then takes you all the way to the artifacts the stores actually require. You own genuine Flutter code and can export the full source at any time.
- No coding required — go from idea to a working app in an afternoon.
- Real Flutter, no lock-in — export the source and keep building in any IDE.
- Store-ready output — signed APK & AAB for Google Play, plus iOS build prep.
Creating an account is free. See pricing for what's included, or read how it works on the homepage.