Flutter is a popular open-source mobile application development framework created by Google. It allows developers to build high-performance, natively compiled apps for mobile, web, and desktop platforms with a single codebase. Flutter's popularity has been increasing rapidly since its launch in 2017 due to its numerous benefits for app development. Flutter app development offers numerous benefits for developers, businesses, and end-users. Its cross-platform capabilities, fast development cycles, customizable user interface, high performance, and strong community support make it an ideal choice for mobile application development.