The best you can get.
Ive tried lots of running apps and this is the best. I have zero complaints after using it for almost a year. Not only is it the best running app its at an amazing price. I would recommend this to any runner. I also use it for cycling, I cant say its the best simply because its the only one Ive used but I can say it has worked flawlessly for cycling. I love the full set of features in the app that you cant find in other apps.
TRCMF about
iSmoothRun, v4.4.0