title: Does Firebase Actually use the iOS Bundle Id for Anything?
body: <p>I just attempted to create an new App Id for my paid Apple Developer account, on developer.apple.com. The Bundle Id I tried to use was already taken by my previous free Apple Developer account, <a href="https://forums.developer.apple.com/message/237445#237445" rel="noreferrer">so I had to use a different Bundle Id</a>, which I did.</p>
  
  <p>In my Xcode project I updated to my new Bundle Id everywhere I could find, Project settings, Info.plist and the GoogleService-Info.plist for Google SDK Authentication and Authorization. My app uses Firebase, my app still works entirely correct, I able to Login with existing account stored in Firebase Database and create new accounts that are correctly created in Firebase.</p>
  
  <p>I then logged into Firebase, which I have been using with my app for a while, I created this Firebase project when I was using my free Apple Developer account. this Firebase project has my iOS app listed with the old Bundle Id:
  <a href="https://i.stack.imgur.com/HJ991.png" rel="noreferrer"><img src="https://i.stack.imgur.com/HJ991.png" alt="enter image description here"></a></p>
  
  <p>There is no way to edit this on Firebase Bundle Id, I have to create a new Firebase App within the Firebase Project as I have read <a href="https://stackoverflow.com/questions/39841428/changing-bundle-id-for-firebase">here</a>.</p>
  
  <p>To recap, I have I changed the Bundle Id in my App source code everywhere I could find to change it. I used Xcode to Clean &amp; Build, I deleted the App from my test device and reinstalled and everything still works against the Firebase backend.</p>
  
  <p>My question is:
  <strong>Does Firebase actually use the iOS Bundle Id for anything other than a name for an App in a Firebase Project?</strong></p>