Been using for a couple years - love it.

Tried several other apps and found Wahoo to be the best on many levels. Most importantly, does not drain my battery. I can do long distance training and run the app for 6-8hours and it wont completely drain my phone (granted i close all network apps as well). Love the functionality. Only wish it displayed my altitude. I know it tracks it, just doesnt display. I simply export if I need. Anyway, for free? Its worth paying for. Best one out there in my opinion.

Zagsdg about Wahoo, v5.5.2