title: Two Android apps + web app sharing one Firebase db
body: <p>I have 2 android apps and a web app catering two user groups, </p>
  
  <ol>
  <li>android app  + web app for mostly writing data to the database </li>
  <li>another android app for retrieving these data</li>
  </ol>
  
  <p>I need my applications connected to the same database, I want to know whether this is possible with Firebase and is considered valid. </p>
  
  <p>I've seen older posts with workarounds but I need to know whether the new Firebase version supports this out of the box. </p>
  
  <p>This is my first time trying to integrate Firebase into one of my projects therefore some guidance on achieving this task would be really useful.</p>
  
  <p>Thanks!</p>