Okay, I guess.
To those who have sore backs (like me) or mussels that need to be messaged constantly, I do recommend BUYING this. The free vibration settings are kinda crappy, but its help my lower back pain slightly (better than the other apps Ive tried anyways) but its still not getting down into the point of the pain for me.
Mintz2520 about
iMassage U Vibrating Massager