Flutter is an open-source mobile app development framework created by Google, allowing developers to deploy applications across multiple platforms including iOS, Android, web, MacOS, Windows, and Linux, using the Dart programming language. It offers a performant and easy-to-learn coding experience, with a large community of users and popular companies like Google, Alibaba, and Philips Hue already adopting it for mobile development. On the other hand, React Native is another cross-platform framework created by Facebook, enabling developers to build applications that run on iOS, Android, Windows, MacOS, and web platforms using JavaScript, with native UI components and a large community of users, including popular apps like Instagram and Facebook. The choice between Flutter and React Native ultimately depends on the specific needs of an organization, considering factors such as ease of learning, customization options, performance, and compatibility with existing skill sets.