If you go to the options on the app, you can disable things like allowing your location to be tracked and history. You can see others, but they can't see you. The app uses a crap ton of battery life with the location tracker on as it constantly transmits. So it is justifiable. I think you can also set it so it doesn't use cell data for that, only wifi. So if you stay off wi-fi or any nearby free hotspots, that is another option. Everything in that app is configurable. Play around and watch what happens and then set your phone accordingly to "save your device battery life".