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Openv2 is a browser-based platform for building real mobile apps with AI. You describe what you want, and the AI assistant writes files, runs terminal commands, and updates a live preview—all without installing Xcode, Android Studio, or a local Node environment.

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How it works

Your project runs inside a WebContainer: a full Node.js environment in the browser tab. When you send a prompt, the assistant edits your Expo project, runs commands like npx expo install, and starts the dev server. You see the result in a live device-frame preview seconds later. Projects are saved to the cloud automatically. Every completed assistant turn can create a version snapshot, so you can rewind to any earlier state when an experiment goes wrong.

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Who Openv2 is for

  • Founders and PMs who need a working prototype without a full engineering setup
  • Developers who want AI to handle scaffolding, refactors, and repetitive code
  • Teams who collaborate on the same project with editor and viewer roles

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What you’re responsible for

Openv2 handles the build loop. A few things stay on your side:
  • App Store and Google Play accounts — Openv2 supports Expo/EAS-style build flows, but submission is between you, Apple, and Google
  • Store policies and review guidelines — review requirements are yours to meet
  • Credits — AI usage is metered by credits; see Billing & plans for limits and top-ups

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Project structure

Each project has a unique ID and opens at /chat/{id}. The default template uses an Expo file layout with an app/ router and standard Expo config. You work through the Dashboard to create or resume projects.

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Where to go next

Validate your idea

Run a quick check before investing time and credits in a build.

Build your first app

Sign in, create a project, send your first prompts, and see a live preview.

Test on your device

Use Expo Go and QR codes to preview your app on a real phone.

Prompting tips

Learn the prompt patterns that produce cleaner code with fewer round-trips.