title: iOS Equivalent For Android Shared Preferences
body: <p>I am porting an Android app to iOS, one thing I used was the Shared Preferences in Android to save each time a level was complete.</p>
  
  <p>That way when the user gets back into the app, they can see they are up to level 3 or whatever.</p>
  
  <p>Is there a similar mechanism in iOS? or do I have to manually write out to an application specific file?</p>
  
  <p>If so, how do I write out to files only visible to my application?</p>
  
  <p>Thanks.</p>