title: CloudKit per user usage
body: <p>On the Apple Developer webpage for CloudKit (<a href="https://developer.apple.com/icloud/" rel="nofollow">https://developer.apple.com/icloud/</a>) it says that the first tier of usage is 0 users and 100MB of database storage. It also says that it is based on 2.5MB per user. </p>
  
  <p>Does this mean that if one user goes over the 2.5MB amount it will then that costing or can one user use 3.5MB of storage and another use 1.5MB?</p>
  
  <p>Thank you</p>