Company Christoph Schulz created these great apps:
SkyMeter | Location & Movement Information, SkyPilot GPS Dashboard, SkyMeter 4 | Altimeter & More, SkyBarometer | Air Pressure, FastRoute 2, SkyPilot | Logbook for Pilots, AirBarometer 2 | Air Pressure, SkyPilot 3 - Flight Logbook, GPS Location Dashboard, and others..
