DJI Simulator is a software application that allows users to practice flying and testing the functions of DJI aircraft in a simulated environment. It is available for desktop computers and can be used with a DJI remote controller. The simulator includes a range of realistic environments and scenarios, such as urban, rural, and waterfront settings, as well as a variety of challenges and missions to complete. It is a useful tool for beginners to learn how to fly DJI aircraft, as well as for more experienced pilots to practice and hone their skills. It can also be used to test out new features or settings before flying in the real world.