Your comments

What I'm missing in the Dr. Muscle app is mobility, stretching, and progressions.

For example if you can't do barbell squats you work yourself up to one. For example goblet squats - bench squats - full barbell squats. While working on ankle / hip mobility. Sure I can read about it ( and I have done so) it would be beautiful to have an app who did all that thinking for you 🙂