title: Disable getting app review from user if the user has already rated
body: <p>I have a one question and I need one suggestion </p>
  
  <p>I use these codes to get app review from user, it's written in the app delegate and count how many times that user open the app. </p>
  
  <pre><code>    if currentLaunchingCount == 10 || currentLaunchingCount == 20 || currentLaunchingCount == 30 || currentLaunchingCount == 40 || currentLaunchingCount == 50 || currentLaunchingCount == 60 || currentLaunchingCount == 70 || currentLaunchingCount == 80 || currentLaunchingCount == 90 || currentLaunchingCount == 100 {
          SKStoreReviewController.requestReview()
      }
  </code></pre>
  
  <p>It works fine, but I don't know, if user has already rated, it will appear again or not? if it will, how can I disable it. </p>
  
  <p>I need a suggestion as well, I really don't like my code about it, it's too long, how can I make it shorter? I want to say when <code>currentLaunchingCount</code> is equal to 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 ask for reviewing. </p>
  
  <p>Thanks :)</p>