Go to fitness app!

This has been my preferred fitness app for the last year. I used it with my pebble and more with the Apple watch. Calories estimated at a little high but I love the custom work out settings. Great for creating your own HIIT sessions, weekly 5k intervals, or just mixing it up. If you dont have a chest heart rate monitor you can use the apple watch to do it as well. Compatible with a lot.of popular apps and integrates with Apple Health kit.

I love how it allows you to track your workout gear like miles on shoes!

eRAYseMe about iSmoothRun, v5.4.0