[lunch]

App-wide support for 100% native navigation with an easy cross-platform interface. For iOS, this package is a wrapper around react-native-controllers, but provides a simplified more abstract API over it. This abstract API will be unified with the Android solution which is currently work in progress. It also fully supports redux if you use it.

It sounds to me, after reading the above and googling "React Native" for <10 minutes, that this library handles the UI navigation for mobile phone apps written in React Native, and it does so in a way that allows your code to work across multiple operating systems (presumably iOS and Android). This library is also compatible with redux, a very popular state manager.