Google launched its beta version of flutter framework, which can be used for developing native apps for Android and iOS devices simultaneously, just like React Native.Flutter provides neat workflow by accessing API for accessing CPU and GPU resources of a device.
Google announced about the flutter during Google I/O submit last year.And its beta version is available for now.Many developers already launched their apps based on flutter in both the app stores (Android and iOS).There were above 1000 packages available for rapid development and counting goes on.The apps in the stores proved the stability of the framework
And this framework has supports from SQLite, firebase, GraphQL packages for making things work rapidly.
And one can start developing apps right now with the existing IDE’s like Android studio or Xcode or modern text editors like Atom or Visual studio code.
Resources: flutter institute aesome-flutter
Apps developed using flutter: flutter gallery