Writing native code for React Native used to be a dark art involving complicated header files and fragile bridges. The Expo Module API has modernized this process.
Why Developers Love It:
- Swift & Kotlin First: Write your native code in the modern languages you love.
- Auto-Linking: No more manual configuration in Xcode or Android Studio.
- Safe by Default: The API prevents common errors like thread-safety issues.
The "Development Build" Shift:
In 2026, we've moved away from the "Expo Go" limitations. By using Development Builds, you can include any native module while still enjoying the fast iteration cycle that Expo provides.
Expo has successfully unified the development experience, making "Vanilla" vs. "Expo" a debate of the past.