Saving Data on Android

Cloud Firestore vs. Real/me database
Due to the similarity between the Realtime Database and the Firestore, you may be 
wondering how they’re different. Both of these products offer a cloud-based 
database solution with real-time data syncing for mobile clients, so what gives?
You can think of the Cloud Firestore as an 
improved
 version of the Realtime 
Database because it’s designed to overcome the drawbacks of the Realtime Database 
with things like 
scaling
, 
data structuring
 and 
querying
. Since the Realtime 
Database stores data as one big JSON tree, it’s challenging to organize and scale 
complex data.
Firestore has a new and intuitive data model, and it handles complex data using 
subcollections within documents. Because of how documents and data are stored, 
the Firestore has faster queries than the Realtime Database, and it supports indexed
Saving Data on Android
Chapter 16: Introduction to Cloud Firestore
raywenderlich.com
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queries with