Miles are off – Charity Miles Review

The mileage tracker for this is so off I have 3 others apps for running on my phone. Nike run, under Armour and the polar fitness app. Yesterday it was off by a half mile so I figured let me run all of them at the same time today. All the other apps said 3.2 miles and this app said 2.021, how does that make sense?
Review by frankiefigz915 on Charity Miles.