Since the other two reviews didn't really explain much, basically this app is for practice. When you start it up, you have the choice of flying any of the drone models. After you select the aircraft, you can either do challenges or free flight. Once the game starts you can change the view from either standstill, follow close, or "vr mode" (first person). I chose to fly my new v2400HD for practice and it seemed to respond almost exactly like it would in real life, even down to turning manual takeoff/land on by holding down the stunt and auto takeoff/land button before flight. The controller for that specific model is very accurate but seeing as that's the only one I own I can't say much on that. Overall, if you read this review the app is probably definitely worth downloading to practice with.