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Answers to common questions about building and shipping Flutter apps with Builder. Can't find it? We're one message away.
Getting started
Create your account, write your first prompt, and get a working app.
Browse answersBuilding & previewing
Refine screens, iterate with live preview, and shape your Flutter app.
Browse answersShipping & exports
Signed APK & AAB, keystores, iOS prep, and exporting your source.
Browse answersAccount & security
Sign-in, password resets, data, and privacy.
Browse answers
FAQ
Frequently asked questions
The quick answers founders reach for most often.
How do I get started with Builder?
Create a free account, then describe the app you want in plain language. Builder plans the screens and writes real Flutter code, which you can preview live and refine as you go.
How do I export my Flutter source code?
Your project is genuine Flutter & Dart, and you can export the full source at any time from your workspace. There's no lock-in — open it in any IDE and keep building.
How do I generate a signed APK or AAB?
Builder produces release-ready builds for you: a signed APK for direct installs and an Android App Bundle (AAB) for Google Play. Builder also generates and manages the signing keystore (JKS) and handles versioning.
I lost access to my account — what should I do?
Use the “Forgot password?” link on the sign-in page to receive a reset email. If you still can't get in, contact support and we'll help you recover your account.
Can Builder publish to the App Store as well as Google Play?
Yes. Because the output is Flutter, your app targets Android, iOS, and web from one codebase. Builder helps prepare the iOS build artifacts and signing materials the App Store expects.
How is my data and code protected?
Authentication is handled securely by Auth0, data is encrypted in transit, and signing keys are handled with care. See our Privacy Policy for full details on how we collect, use, and protect your information.
Still stuck?
Talk to a human
Reach the Builder team directly and we'll help you get your app shipped.