title: In-App purchase storing the purchase state
body: <p>I am implementing in-app purchase to my iPhone App. I am following with this tutorial <a href="http://xcodenoobies.blogspot.com/2012/04/implementing-inapp-purchase-in-xcode.html" rel="nofollow">http://xcodenoobies.blogspot.com/2012/04/implementing-inapp-purchase-in-xcode.html</a> and everything working fine. </p>
  
  <p>But in the above tutorial purchase state is saving in the Phone KeyChain Utility. We can able to purchase it only once. </p>
  
  <p>The second time when i downloaded the App it installs with purchased state .</p>
  
  <p>In in-app purchases purchase should be unique to Apple ID or Device or Both ?</p>
  
  <p>Thanks.</p>