Geofencing

Geofencing is a type of location-based advertising and marketing. A mobile app or software uses the global positioning system (GPS), radio frequency identification (RFID), WiFi or mobile data to define a virtual geographic boundary. When a user crosses this boundary inwards or outwards with their device, a marketing or advertising activity is triggered. For example, tennis clothing can be advertised on a tennis court. This virtual boundary is called a geofence.