After starting the app you have to confirm that BuszZer is allowed to access your location. Once in the main screen, tap „Mark destination“. If you press a point on the map for 2 seconds, a red pin will be set, which will become your destination. By pressing the „OK!“ button you confirm the entry. „Abort“ aborts the input. Once you have selected the destination, set the toggle switch on the main screen to „ON“. Now the street name and the house number of your selection are displayed. If you approach your destination, the alarm will be triggered.