ReactXP
Library for cross-platform app development
...We have taken this a step further and developed a thin cross-platform layer we call ReactXP. If you write your app to this abstraction, you can share your view definitions, styles and animations across multiple target platforms. Of course, you can still provide platform-specific UI variants, but this can be done selectively where desired. ReactXP is designed with cross-platform development in mind. In general, it exposes APIs, components, props, styles and animation parameters that are implemented in a consistent way across React JS (HTML) and React Native for iOS and Android.