title: Migrating free App to freemium
body: <p>I'm about to submit my first (free) app for the AppleStore.
  I plan to make an update later with in-app purchases.
  I'm not familiar with iTunes connect and I don't know yet anything about how in-app purchases works, so I'd like to know if there is anything I should be aware before submitting in order to make the future update easy/possible.</p>
  
  <p>For example, I believe I should submit it as a free app, but i'm not sure i'd better make it an in-app purchase right now even if it doesn't implement purchases for now)</p>
  
  <p>Many thanks !</p>