Learn Google Flutter by example. Learn Flutter from scratch, no mobile app experience required. Over 65 example mini-apps.Flutter is Google’s mobile SDKUI framework that enables developers to build native apps that run on Android and iOS devices. Developers write code in a single codebase that works on both platforms. Flutter was written for high productivity, to get apps out fast. Flutter is not a language (like javascript, for example). Flutter uses Dart for its language.