Please Help phone tracker getting hold of my personal stuff

view full story

http://androidforums.com – Hi I have a problem I am trying to help my sister in law, my brother is tracking her phone Samsung galaxy s2 we believe and we know as he has sent messages to her phone that she sent to someone else that day, when he sent them back we noticed that there was a number attached to the message can anyone tell me what this number is and is it a password maybe for the tracker 0104201214, now also she said she gets apps that just randomly appear and go away what is with that?? we need to remove this tracker and we can not seem to find the app in the app list, I believe it may have a stealth trackin (General)