Graphics sold me!
This app is a great alternative to pricey studio workouts. The graphics that show you what the workout entails, where you are in the workout and the interval, and what the settings on the treadmill should be, are what sold me on this over similar apps. Otherwise I found this kind of work out hard to follow. I also find it helpful that the trainer talks through the whole workout. Other apps just tell you when to change the intervals.
Putting in my vote for a rating system for the workouts and a way to record your own notes.
Marlene Cook about
Motion Traxx: HIIT Workouts, v1.50