Get started with Joonsbuild

Everything you need to go from idea to production-ready code.

Your first build — step by step

Create your account

Account

Create a new project

Dashboard

Click "New project" on your dashboard and give it a name. Each project is one app.

Describe your app idea

Build chat

Tell Joonsbuild what your app does in plain English. Be specific — the more detail you give, the better the result. Include: what the app does, who it's for, and key screens you want.

Let the AI work through the phases

Build chat

Joonsbuild works through 13 phases: onboarding → planning → architecture → design system → module building → final delivery. Each phase produces a specific output. Just respond to questions as they come.

Download your code or push to GitHub

Preview

When Phase 13 is complete, your preview page shows the built app. Click Download ZIP to get all the source files, or connect GitHub and push with one click.

Continue or make changes

Build chat

Want to add a feature or fix something? Open the project and keep chatting — changes to an existing project are always free.

Tips for better builds

Be specific in Phase 0

The AI asks about your app idea in Phase 0. The more detail you give — target users, key screens, core actions — the better every subsequent phase will be. Spend time here.

Choose your framework early

Joonsbuild will ask which framework to build in. If you're unsure: Flutter is the best choice for cross-platform beginners. SwiftUI if iOS-only is fine. React Native if your team already knows JavaScript.

Scope your MVP

For your first build, choose Simple or Medium scope. You can always continue the project and add more features after the initial build. Building everything at once increases complexity.

Save your project often

Project context is automatically saved after every completed phase. If your context window fills up, you can continue with 1 credit — the AI will restore all your project memory.

Use the preview to validate

The interactive phone frame preview lets you click through your app before downloading. Use it to check screen flow and layout before pushing to GitHub.

Connect GitHub before you need it

You can connect your GitHub account from any preview page. The OAuth connection is stored — you only need to authorise once.

Choosing a framework

Framework	Best for	Platforms
Flutter	Cross-platform beginners, rich UI	iOS + Android
React Native	Teams that know JavaScript	iOS + Android
SwiftUI	iOS-only, deep Apple ecosystem	iOS + macOS
Kotlin Compose	Android-only, modern Android dev	Android

Ready to build?

Your first build is free. No credit card required.

Start your first build →