As a once iOS and Android Dev (before moving to game dev in UE4) I found the act of having to rewrite an app again on another platform a great way to refactor t

As a once iOS and Android Dev (before moving to game dev in UE4) I found the act of having to rewrite an app again on another platform a great way to refactor the code and do things better the second time around. If I had to go back though I'd probably try to find a way to do things once on the web, is React Native this?