“ Originally Posted by monkeyxiv 
”
nice app but on a literal term of using gps as a speedometer. if you are to use a program like this as your main speedometer you must use caution because these are not accurate. the ONLY way a gps speedometer is accurate is if it is a flat surface. a gps cannot take depth into consideration in the speed. for example, it will read your actuall speed wrong if your going up an incline or down an incline. which is almost everywhere.
not to dissagree with you man but i took a trip to the outer banks this summer using my gps on my tilt and west verginia is nothing but hills and it was about 1mph off the whole entire time so idk if maybe it depends on the gps itself?!?