MM is for tracking and monitoring iOS , remote monitoring of your children or partners device , Tracking SMS, WhatsApp, Viber, iMessages, Skype, GPS Locations, Calls History, viewing all Images and Videos , and it's hidden and stays hidden , it a scary tweak dude
I remember a girl on another forum a week ago who's boyfriend had been tracking her device with MM , she was a very angry girl , the boyfriend knew everything she did on that device , every message photo phone call the lot ????
Just be sure you fully understand how to use it and you should be ok , my worry with this tweak is , if you can track them they can track you