title: iOS: What are DISTRIBUTION provisioning profiles used for?
body: <p>This might have been asked lots of times, but still I couldn't find info on why are they needed. I use DEVELOPER prov profiles to test apps on my device, that makes sense.</p>
  
  <p>The Provisioning Portal explains prov profiles like this:</p>
  
  <pre><code>A Provisioning Profile is a collection of digital assets that uniquely ties
   developers and devices to an authorized iOS Development Team and enables
   a device to be used for testing. 
  </code></pre>
  
  <p>By this logic they are only needed for testing, eg not for distribution. Do we need one to deploy the app on the AppStore?</p>