Great app but...
Ive used and loved this app for a few years now and it really works if you use the routines everyday. What I dont like about this app is that you can no longer listen to your music while its running.
If this isnt fixed within a few weeks Ill be finding an ab routine app that does allow music to play.
handsbent about
Ab Workout X PRO - Six-Pack Core Exercises & Abdomen Trainer