As part of the final thesis, an application was created that allows displaying an Android GPS heat map, tracking the user’s location in real time, and inputting GPX files on the basis of which a heat map is created. The functioning of the GPS system and navigation devices is explained in detail. The Android operating system, its most important components and their use are also shown. The creation of an Android application, programmatic retrieval of the user’s location, use of the Google Maps API, and creation of heat maps using it are explained.