I love this App as its so simple and easy to use and is like having my own personal trainer.
Use it for swimming and a stair master and just adapt the existing exercise programs on the app for my routines.
I love the fact that can customize the warm up and how many reps and how long the reps are and how long recovery and cool down are.
I only wish the app kept a log of my progress and daily workouts.
Great value!
JGL2015 about Fast Exercise