About react-native: React Native is a JavaScript framework for writing real, natively rendering mobile applications for iOS and Android. It’s based on React, Facebook’s JavaScript library for building user interfaces, but instead of targeting the browser, it targets mobile platforms. In other words: web developers can now write mobile applications that look and feel truly “native,” all from the comfort of a JavaScript library that we already know and love. Plus, because most of the code you write can be shared between platforms, React Native makes it easy to simultaneously develop for both Android and iOS.

Why react-native: There is much hybrid technology like the phone gap, but UI experience is not good for these libraries. But react native is using native iOS and android component and using bridge method to communicate. So react-native UI and performance are similar to the native project.