This is simple web browser app showing map from adsbexchange.com website and simple small compass for orientation.

„Welcome to ADSBexchange.com the world’s largest co-op of ADS-B/Mode S/MLAT feeders and the world’s largest public source of unfiltered flight data. Access to worldwide flight tracking data opens up a whole new world of flight monitoring for hobbyists researchers and journalists alike. - www.adsbexchange.com