Although both Flutter and React Native are the leading names in the world of application development and both offer an easy and faster way to develop comprehensive mobile applications, they have some differences too. The first difference is the programming language they employ for development. Where React Native uses the most popular and commonly used Javascript, Flutter uses a completely different Dart language. Also, where React Native encourages the use of third party libraries to make the application development faster, Flutter utilizes its own set of built-in widgets to accomplish the task.