AirSim is described as 'Simulator for drones (and soon other vehicles) built on Unreal Engine . It is open-source, cross platform and supports hardware-in-loop with popular flight controllers such as Pixhawk for physically and visually realistic' and is an app. There are seven alternatives to AirSim for a variety of platforms, including Mac, Windows, Android, Android Tablet and iPad apps. The best AirSim alternative is DRL Racing Simulator, which is free. Other great apps like AirSim are HELI-X, Real Drone Simulator, Quadcopter FX Simulator and Hotprops.
The official simulator for the Drone Racing League, DRL Racing Simulator is designed to turn rookies into pilots. Featuring real courses with high end visuals and real competition scoring, along with highly customizable drones, it's built for real world training.
Quadcopter FX Simulator is a drone simulator with first-person view and Cardboard support for an immersive flying experience.
HOTPROPS is a realistic drone simulator with high end visuals, real world physics and multiplayer game modes..
Practice flying any of the entire fleet of Sky Viper drones on your mobile device with Sky Viper Flight Simulator.
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