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Flutter is a cross-platform framework created by Google for building mobile applications. It is able to work across multiple operating systems: Android, iOS, Fuchsia. The performance of a Flutter app is almost indistinguishable from a native one. The framework offers a great number of eye-pleasing highly customizable widgets, that provide lots of creative abilities to build versatile and sophisticated apps. With Flare tool that comes with the Flutter package, you can create incredibly complex UI elements and interactive animations within really short periods of time.