title: Implement app thinning in iphone application
body: <p>My iOS application's size is quite bigger on app store. How can I lower achieve the <a href="http://developer.apple.com/library/watchos/documentation/IDEs/Conceptual/AppDistributionGuide/AppThinning/AppThinning.html" rel="nofollow">app thinning</a> so that application size get lower.</p>
  
  <p><code>Note</code>:- </p>
  
  <ol>
  <li>I am already using Images.xcassets to put x/2x/3x images separately.</li>
  <li>I also read this <a href="http://developer.apple.com/library/ios/qa/qa1795/_index.html" rel="nofollow">apple documentation</a> and take care of optimisation level build settings.</li>
  <li>I am also using an 8-bit PNG instead of a 32-bit PNG.</li>
  </ol>