Expo SDK
Expo SDK is a framework and platform for building cross-platform mobile applications using React Native. It provides a set of tools, libraries, and services that simplify development by handling native code complexities, offering pre-built components, and enabling easy deployment. Developers can write JavaScript/TypeScript code and deploy to iOS, Android, and web without managing Xcode or Android Studio directly.
Developers should use Expo SDK when building React Native apps quickly, especially for prototypes, MVPs, or projects where they want to avoid native code configuration. It's ideal for teams with web development backgrounds, as it reduces the learning curve for mobile development by providing managed workflows, over-the-air updates, and built-in access to device APIs like camera, location, and push notifications. Use cases include startups, educational apps, and internal enterprise tools where rapid iteration is key.