Reactant is a foundation for rapid and safe iOS development. It allows you to cut down your development costs by improving reusability, testability and safety of your code, especially your UI.
jQuery Mobile is a HTML5-based user interface system designed to make responsive web sites and apps that are accessible on all smartphone, tablet and desktop devices.
React-inspired Swift library for writing UIKit UIs.
React Native Material Design
An open source project which aims to bring Material Design to Android through React Native by Facebook. The library is made up of many components, which can be found in the sidebar.
Not CSS. Instead of trying to force UIKit to fit CSS syntax, properties, conventions and constructs. Classy is a stylesheet system built from the ground up to work in harmony with UIKit. It borrows the best ideas from CSS and introduces new syntax, conventions and constructs where appropriate.