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. A small Czech team called Brightify has created Reactant.
https://www.reactant.tech/
https://github.com/Brightify/Reactant
https://techcrunch.com/2017/09/29/reactant-is-a-new-native-framework-for-ios-apps
https://www.reactant.tech/
https://github.com/Brightify/Reactant
https://techcrunch.com/2017/09/29/reactant-is-a-new-native-framework-for-ios-apps