I lost my drone because of this stupid app. One time i tried to connect my expensive drone to the app and control with it. I used the launch button to launch, but it did not just launch. It hovered upwards fast and did not stop elevating. I tried to control it with the app, nothing. Then i hit the emergency button(from the app), which would disable the motors temporarily, nothing happened. The drone continued travel upwards unit it disappeared from the night-sky. I wonder if it even reached Earth’s orbit. Maybe thats the use of the app, to launch drones as satellites. NEVER USE THIS APP TO CONTROL THE DRONE!