title: Do tapjoy commercial campain and get Pro version app?
body: <p>I have seen some apps like "Get paid to play" and "Appdog" were tapjoy is used. You do commercial campains and get paid for it.I was wondering if there was any way to use tapjoy in your app with your own point system. And if you reach a certain number of points, you will be able to get a pro or a paid version for free.</p>
  
  <p>Are there any way of doing this? </p>