Your current GPS coordinates are shown at the bottom of the Tariff page on the right hand side of the screen.
Your location is established from the GPS receiver in your phone, if you have one and it’s enabled, the WiFi access point you are connected to or the nearest mobile phone tower.
These features differ between Android and iOS and you should enable location services on your smartphone if you want to control your home appliances as you arrive or depart at . from your property.