[wehadfun]

React Native vs Xamarin?

[gman83]

Very different approaches. Personally, I'm most intrigued by what Google will show of Flutter at I/O this year.

[xster]

Also very different approach. Flutter renders all graphics much closer to the metal instead of binding to platform's UI APIs so you're effectively shipping the UI toolkit that will be the same on jelly bean and iOS 10 (or different if you want)