title: Pro accounts upgrades based on in-app purchase
body: <p>I would like to change my iOS app from paid app to in-app purchase.</p>
  
  <p>I would like to be able to do the following:</p>
  
  <p>o Purchase Pro account status for X months from within the app
  o Purchase Pro account status on our website 
  o Upgrade users to Pro accounts status users from our system </p>
  
  <p>Which of the in-app purchase types you think best - Non-renewing or 'Non-Consumable’ ?</p>
  
  <p>In the guidelines it says 
  "
  11.1    Apps that unlock or enable additional features or functionality with mechanisms other than the App Store will be rejected.
  11.2     Apps utilizing a system other than the In-App Purchase API (IAP) to purchase content, functionality, or services in an App will be rejected. 
  "</p>
  
  <p>Is enabling purchasing the pro account status on our website or the system upgrades contradicts what mentioned in 11.1+11.2? </p>
  
  <p>Thanks for the assistance.</p>