Build a mobile app with Expo
We build Expo React Native applications for iOS and Android. Managed workflow, EAS Build, OTA updates without republishing. From Figma prototype to publishing on the App Store and Play Store.
What is Expo React Native?
Expo is the official platform for developing React Native applications. It simplifies access to native APIs (camera, GPS, notifications), provides EAS Build to compile without a Mac or a local Android environment, and enables OTA updates without republishing to the stores. It's the recommended starting point for building a mobile app with Expo React Native.
Why we build with Expo
EAS Build cloud
iOS and Android compilation in the cloud. No need for a Mac in CI, and builds are reproducible and versioned.
OTA Updates
Deploy fixes and features without going through store review. Users get the update on their next launch.
Complete native SDK
Camera, biometrics, push notifications, GPS, in-app purchases: everything is packaged and maintained by the Expo team.
Expo Router
Filesystem-based routing, identical to Next.js. Navigation and deep linking are configured in a few files.
What Expo changes for your app
Reduced time to market, simplified maintenance: a single codebase for iOS, Android and web.
Faster delivery
EAS Build removes the native configuration. We spend more time on business logic, less on the toolchain.
Fixes without delay
A critical bug? An OTA Update deployed in minutes, without waiting for App Store review.
Reduced cost
A single codebase for iOS and Android. No need for a native team dedicated to each platform.
Scalability
From managed workflow to bare for advanced native needs: Expo adapts to the growing complexity of your Expo application.
Our Expo expertise, in numbers
What we build with Expo
We combine Expo with
The stack around Expo on our projects.
How we build with Expo
Every stack comes with its own ecosystem. We always pick the technologies best suited to your project, based on its needs and its context.
To build an application with Expo React Native, we initialize a project with the Expo SDK, configure EAS Build for cloud iOS and Android compilations, then develop with Expo Router and the native SDK. Fragments Studio handles the whole process, from setup to publishing on the stores.
Managed Expo covers 95% of needs: complete native access through the SDK, EAS Build, OTA updates, with no native code to maintain. The bare workflow is reserved for very specific native modules. We recommend starting in managed and switching only if necessary.
For JavaScript code, yes: it's allowed by Apple and Google. For native binary changes, a new submission is required.
Yes. That's the main advantage of Expo. The iOS and Android builds are generated separately but from the same TypeScript code.
Yes. We audit the structure, the dependencies and the SDK version, then migrate or improve as needed.
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Your Expo app from prototype to store
We build your Expo React Native application. EAS Build, OTA updates, one codebase for iOS and Android.
Build my Expo app