title: Can I store data on an Android device to persist between installs?
body: <p>I want to store a small amount of data in a way where it persists between application installs. I obviously can't use SharedPreferences as they are removes upon uninstallation. Is there any way to store data so it survives a reinstall of the app?</p>
  
  <p>The data I want to store is a unique ID, to allow blocking of users of the app if they misbehave. If I cannot store an ID, can I access the Google account(s) email addresses to use them as an indicator?</p>
  
  <p>This blog post makes it clear none of the IDs the OS produces are any good, especially when considering tablets
  <a href="http://android-developers.blogspot.com/2011/03/identifying-app-installations.html" rel="nofollow">Android: Identifying app installations</a></p>