Flutter 3 supports six platform targets: Android, iOS, Windows, macOS, Linux, and web applications. Flutter widgets are built using a modern framework inspired by React.

In Flutter, you arrange widgets by placing them inside other widgets, most commonly in two orientations: A Row takes a list of child widgets and displays them horizontally.

Flutter 3.3 brings more Material You widgets, a new renderer that may wildly speed up your app, improvements to Dart, and more.