If you are using flutter, dart is statically typed. So your code will run faster on dart. OTOH RN has RN-web. I haven't used either but I get the impression th

If you are using flutter, dart is statically typed. So your code will run faster on dart. OTOH RN has RN-web. I haven't used either but I get the impression that dart probably looks more android-y and RN probably looks more ios-y. So that's worth considering too.