For some reason the website fails to prominently mention the two defining characteristics: it's based on Dart and it uses its own widget implementation.

Honestly, between the use of a relatively exotic language of dubious quality with types that are "optional and unsound" (https://www.dartlang.org/articles/why-dart-types/), their custom widget implementation that who knows how well is going to work, and lack of web support, it doesn't seem very attractive.

React-native seems a much safer bet.

frik

C++ 76.4%, Python 10.6%, Dart 5.7%, Java 3.0%, Objective-C 1.7%, C 1.2%, Other 1.4%

source: https://github.com/flutter/engine

skrebbel

Ho come on, that's the flutter sources. Why is it so popular on HN to "debunk" points with irrelevant statistics? As if numbers win arguments no matter what?

The point is that Flutter application code is intended to be 100% Dart. Just like React Native application code is 100% JavaScript (and React Native itself isn't).

frik

Just the raw statistics from github plus the direct link. Don't over-interpret it.

What you mean is there: https://github.com/flutter/flutter (99.1% Dart)