Saturn

Describe an app. Get an app — running on your phone, and as a real project you own.

On the App Store · See the plans

Apple silicon, macOS 14 or later · not from the App Store

Two halves

The Mac does the work — it reads your project and shows you the system behind it. The phone is where you watch it, direct it and approve what changes.

It builds, not sketches

Every build is a working app with seeded data, empty states and wired actions — not a screenshot of one.

The code is yours

You get the project in the platform's own language, to open in Xcode, Android Studio or a terminal.

Nothing leaves your phone

Chats and projects are stored on the device. We hold no copy and there is no account to make.

Builds for iOS · SwiftUI Android · Jetpack Compose Expo · React Native Web · React