title: Firebase Analytics: is it using IDFA on iOS?
body: <p>Given the upcoming iOS 14 permission prompt for apps that use the IDFA identifier,
  I am wondering if Firebase Analytics and Firebase Auth do need to access the IDFA in order to operate.</p>
  <p>In such case, are we then required to state that the app is using IDFA when we publish it on the AppStore?</p>