Works great
I like it because it works/sync with myfitnesspal. Training plan is good, but I wish it was customizable ..switch an exercise ..an option of 2-3 others would be nice. Also I skipped a day and went back and all the check marks are out of whack. Maybe I can do this? If so there needs to be a video/explanation of it in app.
XxR4WBxX about
Runtastic Six Pack Abs Workout, v2.5