Saving Data on Android

Room advantages and concerns
Room uses a local SQLite database to store your data. Therefore, most of the 
advantages and disadvantages of SQLite apply to Room as well.
These are some of the main advantages of using SQLite to store data:
•
Portability
: SQLite is available for most platforms and can be used with many 
popular programming languages such as Java, Kotlin and Python.
•
Lightweight
: SQLite is probably the most lightweight database out there, making 
it suitable for devices with low memory, like smartphones.
•