React Native + Expo have become one of the best ways to build mobile apps with JavaScript.
Why Expo?
- Quick setup without Xcode or Android Studio
- Integrated development tools like hot reload and debugging
- A large library of native modules
Starting from Scratch
First: Install Expo CLI
Then: Create a new project with expo create-app
After that: Run your app directly on your phone with Expo Go
Recommended Structure
- /app — App screens
- /components — Reusable components
- /hooks — Custom hooks
- /utils — Helper functions
Deployment
Expo lets you publish your app to the App Store and Google Play without native build complexity.
Conclusion
If you're a web developer looking to enter mobile, React Native + Expo is one of the fastest paths.