title: Check if App is rated in App Store
body: <p>I have gone through all the links prompted when I was about to post this question.
  also this, <a href="https://stackoverflow.com/questions/5318666/is-there-a-way-to-check-if-a-user-has-rated-your-app-on-the-app-store">Is there a way to check if a user has rated your app on the app store?</a></p>
  
  <p>I want to know if there is any way by which i can know if actually my app has been rated by the user.
  P.S: I have used appirater to implement prompt on required event.. which is working properly.
  Thanx in advance </p>