title: Can i use multiple apps on a single firebase database? Will it use same auth or different auth?
body: <p>I am currently developing multiple apps with Firebase and I have a doubt. I have a user and an admin. My problem is if I am using the same firebase database, will the user be able to sign up into Admin's app using his credentials or both app will have different authentication.  I don't want the user logging into the admin app with user credentials. If it is possible, what can I do to avoid it?</p>
  <p>I haven't done trying it.</p>