Timing and video problems
This is a good start, but the workout does not provide decent videos. If you pause before an exercise, you should be able to watch a video to see how its done. The app shows intermittent pics - no real video. Also, no extra time is built in the audible timer to switch sides. So, the three seconds it takes to switch from right to left planck, for example, is taken away from the actual time for the left side exercise. Strange.
Tedhtl about
Ab Workout X PRO - Six-Pack Core Exercises & Abdomen Trainer