Comentario oficial
We are sorry to hear about your incident. This was most likely caused by an uncalibrated battery. This can make the reporting of the state of the battery to any app unreliable and can cause unintended landing or other issues.
Map Pilot is not in charge of any flight. Once the flight is programmed into the aircraft the aircraft is fully in control. That is why if you were to unplug your mobile device from the remote the aircraft would continue to fly along as programmed without any other intervention.
Map Pilot only shows the percentage of battery power that is report and offers no alerts since that is handled by the beeping of the remote.
Calibrating your battery should be done every 20 cycles or so and consists of discharging the battery down to 8% or so and then doing a full and complete charge on the stock charger.