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About Expo
Expo lets developers write apps that are written in JavaScript and run natively on Android, iOS, and the web. Our cloud services that work with all Expo and React Native apps, named Expo Application Services (EAS), further speeds up teams by helping them get to the app stores as fast as possible and continue growing.
We believe that mobile apps provide a better experience than websites, but making apps is much more difficult than it needs to be. With Expo, we're bringing together the best of the web, like its development speed, fast iteration cycles, easy deploys, and automatic cross-platform support, and the performance, device capabilities, and user experience of native apps.
What Expo does
Expo is a toolchain for building native iOS, Android, and web apps with React. It combines a CLI, cloud simulators, and CI/CD workflows so developers and AI agents can build, test, and ship from one codebase. The platform includes over-the-air updates, app store launch guidance, and built-in monitoring. It is used by over 3 million developers. Pricing starts with a free tier for solo developers, then paid plans from $19 per month plus usage, with custom enterprise options.
Key features
- Build for iOS, Android, and web from one codebase
- Cloud simulators for agents with screenshots and logs
- Over-the-air updates with channels and rollouts
- Automated CI/CD pipelines for builds and tests
- App Store launch guidance without configuration
- Built-in performance metrics and crash reporting
