A. Basic functionality enhanced with privacy filters Common to all similar applications, the main functionality of EasyTracker is to record a track and visualize it in real time on a user-selected map. Thereby it stores the geographical coordinates on a local database and it is able to calculate useful statistics (total distance travelled, average speed, etc.). Using the device orientation sensor, the real heading can be calculated and displayed on a map and on a built-in compass. The user has also the options to take photos or set places (point of interests - POI) and associate them to geographical coordinates, create notations to each part of a track, view a stored track on a map or export a saved track in a geographical file following one of many well-known data formats like GPX, KML and CSV.