Onsen UI for React
Onsen UI is an open source framework that makes it easy to create native-feeling Progressive Web Apps (PWAs) and hybrid apps.
The core library is written in pure Javascript (on top of Web Components) and is framework agnostic, which means you can use it with your favorite framework and its tools. Both flat (iOS) and Material (Android) designs are included. The components are optionally auto-styled based on the platform, which makes it possible to support both iOS and Android with the same source code.