Best there is

Its a great app. It works really well. Your videos will look pro. It has s different ability that you dont have as a manual pilot especially at first. there is a large learning curve for the more complex features and abilities but with 10 minutes on YouTube you can know enough to get you in the air and filming some amazing shots. Pay close attention to the safety videos too. They can save your phantom.

Inevertell about Autopilot for DJI Drones, v3.4