According to android TomTom Go takes 686 mb of space on the internal storage of my phone. I think the map is on external SD card. When I remove the SD card GO does not work. So why is it taking so much space on internal storage? I already removed it and installed again however this makes no difference. It would be very helpful if you could see more easily from the program itself which space is used on what location. Maybe there is still an old map on internal storage?