We strive to be the best tracking app in the world. With that being said, not all phones are built the same. Some Android phones don’t allow apps to properly use background location services so in the event you close the app or put it in the background, it may stop working. Please see https://dontkillmyapp.com/ for a list of phones that have this issue. Also, users can adjust their battery settings on the app which impacts how frequently their location is updated when they move with their phone. So please always be checking the user’s battery setting and click on the user icon in map view to see the date and time of their last location update. Please also be aware that users can ask to go invisible to users in which case they won’t even show up on your list or map or radar or they can turn broadcast location OFF in which case there will be no current updates to their location.