title: What's the difference between Cloud Firestore and the Firebase Realtime Database?
body: <p>Google just released Cloud Firestore, their new Document Database for apps.</p>
  
  <p>I have been reading the documentation but I don't see a lot of differences between Firestore and Firebase DB.</p>
  
  <p>The main point is that Firestore uses documents and collections which allow the easy use of querying compared to Firebase, which is a traditional noSQL database with a JSON base.</p>
  
  <p>I would like to know a bit more about their differences, or usages, or whether Firestore just came to replace Firebase DB?</p>