Where do I store user data for my Android app?

Question

Android

I am writing a game for android and I don’t understand where in the future to add all the passwords and in general all the information about the characters of the players.
Does Google Play have its own base or will you have to buy hosting ?
I would be glad for some books on the topic of publishing applications on Google Play.

Answer 1

Right on the surface
https://firebase.google.com/?hl=ru