title: Android: Using Room and Firestore?
body: <p>I wrote an app that saves and uses data in/from a Cloud Firestore database. I would want to organize more clearly than for the moment my files, for example by using DOs and DAOs.</p>
  
  <p>I know the concept of "DAO" exists in Android Room.</p>
  
  <p>However, <a href="https://developer.android.com/training/data-storage/room" rel="noreferrer">the documentation</a> seems to define Android Room as a "local database". So if I understand it well, I shouldn't use it in addition to Firestore?</p>
  
  <p>By the way, it would be the same with Firebase Cloud Realtime Database (a third database system).</p>
  
  <h1>Edit :</h1>
  
  <p>I didn't understand the notion of "local" database (Room). Tamir, in his answer, corrected me. This question is off-topic.</p>