When it comes to persisting data locally in an Android application the only options are SharedPreferences and SQLite database. However SharedPreferences are good for storing user settings but they are not created for persisting large sets of data or relational data. So the only option for this kind of data is SQLite. Everybody who has previously used SQLite knows the pain of manually writing SQL statements for fetching and persisting data from the database, creating the tables manually, creating cursors for reading the data back and manually parsing the returned records to objects from our Model. Here Room comes to rescue.