Good For the Exercises
Based purely on the exercise programs, I would give this app a 5 star review. Lots of different exercises that work all the core muscles, and it allows you to alter each program by choosing what specific exercises you do, how many reps, and how many sets. As others have mentioned, it does have some technical difficulties. Every time you open the app, you get a pop-up ad for other applications from this developer. This is unacceptable in a paid program. I can understand if it popped up every once in awhile, but it is currently every time the program is opened (I have some of the other programs from this developer and they all do this). Another gripe I have (which may be related to the first), is that when I'm in the middle of an exercise program and I switch to something else on the phone (text message, music), the program does not save the spot I was in. It defaults back to the beginning and I have to flip through all the exercises to get back to my spot. If these two issues were addressed, I could confidently give this app 5 stars.