Originally Posted by
mstateglfr
How would the app know if you are on a specific 'track'? Maybe you are on it for half the time then turn and go to a different street. Is it still tracking you on that 'track'?
With the GPS unit on the phone, the same way Cyclemeter works. You first record a route and each time you revisit that specific route/track your performance is measured and compared to previous rides. You're not supposed to deviate, but can pause the tracker if you have to stop momentarily for some reason. This is strictly for predefined exercise routes of certain lengths, not casual riding.