Install and open your race track and Lap Tracker will time your laps based on your GPS location! Consult your lap times after each session to see if you improved your time. Multiple vehicles are supported if you have more than one.If you used the old version of Lap Tracker, youll need to transfer your account. Instead of logging in or registering for a new account, click on transfer account and log in with the email address and password of your old account. All your vehicles and track days will be copied to the new app.