Should I turn GPS tracking off when not using the My Epic App? Yes, you should turn off GPS tracking when you are not using the My Epic app to save the battery life on your phone. Related articles How do I turn on GPS tracking for the day? How do I make sure the My Epic App will track my personalized ski/ride stats? Will GPS tracking work if I don’t have network or Wi-Fi signals on mountain? How will my stats be tracked with no gates? Will Mobile Pass & Lift Tickets work if I don’t have network or Wi-Fi signals on mountain?