Over-the-Air App Updates

What Are OTA Updates?

Mobile apps have two layers: the native binary (compiled iOS/Android code) and the JavaScript bundle (your app logic and UI). Over-the-air updates let you replace the JavaScript bundle without rebuilding or resubmitting the native binary.

This means you can fix bugs, update content, tweak UI, and add features — all pushed instantly to users without waiting for Apple or Google review. Users get the update the next time they open the app.

Release Channels

Mobiforge supports three release channels for controlled rollout:

Instant Rollback

If an update causes issues, roll back to the previous version instantly. No new build, no store submission, no waiting. One click and all users get the previous stable version on their next app launch.

How It Works Under the Hood

Mobiforge implements a custom Expo Updates protocol:

1. When you push an OTA update, Mobiforge bundles your JavaScript code and assets
2. The bundle is uploaded to CDN-backed storage (Backblaze B2)
3. When users open your app, it checks the manifest endpoint for updates
4. If a new version is available, the app downloads and applies it
5. The update takes effect on the next app launch

When to Use OTA vs Full Rebuild

Available on Growth and Studio Plans

OTA updates are available on the Growth plan ($99/mo) and above. Combined with automated store publishing, you have a complete mobile CI/CD pipeline.