title: android SIM Card change notifier
body: <p>i am developing an android app. what i am doing is i have added a feature which detects the sim number. if the user changed the sim number, i get the current sim number and then i am emailing the new number to the user. so how am i detecting this is i am automatically sending a message from an app  to my server and then i detect the number. so now the problem is when i  put the app on the Google play store .. they are deleting my app and what reason they are giving me is "you cant send an sms from the phone without user permission which is against their policies.so i am wondering why then other apps are working and doing the same thing .. for example this app</p>
  
  <p><a href="https://play.google.com/store/apps/details?id=instigate.simCardChangeNotifier&amp;hl=en" rel="nofollow">https://play.google.com/store/apps/details?id=instigate.simCardChangeNotifier&amp;hl=en</a></p>
  
  <p>there are many apps on the google play store which detecting the number and i think they are pretty much using the same technique to get the current number.. so i want to know what exactly they are doing or how they are playing tricks with Google so Google cant detect them</p>