React Native

React Native is a framework for building cross-platform apps. React Native lets you build mobile apps using only JavaScript. It uses the same design as React, letting you compose a rich mobile user interface from declarative components. React Native lets you build your app quicker. In place of recompiling, you can reload your application immediately. With hot reloading, you can even run new code while retaining your application state.

Build native iOS and Android apps with JavaScript only with its best features, ReactNative top feature is React.

Apart from React, few important features are

Hot Reloading

Hot Module Replacement API

Hot Module Replacement Runtime

React Native is similar to React, but it uses native components in place of web components as building blocks.