$100 a year hidden charge. I knew there was a subscription but the menus are so hard to find in the app that I wasn't sure when the free period ended. Then I thought I'd be potentially paying $10 a month...nope I just got charged $99 without warning. I didn't even realize that was a potential. Poorly designed app. The GPS isn't very accurate where I live. When I leave the dog at my parents it shows the dog 4 blocks away. Strange. Because of that I wasn't sure if I wanted to pay the subscription