title: WP8 : Local Storage or Isolated Storage to store data?
body: <p>For a Windows Phone 8 application, I always heard that data can be stored in the "isolated storage" of the phone. 
  After some research, I found two namespaces: <a href="http://msdn.microsoft.com/en-us/library/windows/apps/windows.storage.applicationdata.aspx" rel="nofollow">LocalStorage</a> (WinRT but supported too in WinPRT) and <a href="http://msdn.microsoft.com/en-us/library/windowsphone/develop/System.IO.IsolatedStorage%28v=vs.105%29.aspx" rel="nofollow">IsolatedStorage</a> and they <em>both seem</em> to store data. This is what I understood so far :</p>
  
  <ul>
  <li>IsolatedStorage is a virtual file system so you cannot interact with user media for instance</li>
  <li>LocalStorage seems to have a real <em>isolated storage</em> as data is stored in a folder associated to the app</li>
  </ul>
  
  <p>In the IsolatedStorage, can data from various apps mix ?
  I want a way to have a real safe <strong>isolated</strong> place to store data with no extenal interaction from other apps. This data could be settings preferences.</p>
  
  <p>The problem is that I do not know very well those APIs and my testing programs 
  around them lead to new questions.
  What is the real difference between those namespaces and which one could fulfill my need explained above ?</p>