I'm building my first quiz app in android studio with Kotlin. I have the .xml file ready for the registration and login page, what are the best options to store login data?
- I want to make a commercial app.
- Because its my first app I search for a free (or low cost) solution.
- I have experience (course) in postgresql
- I want to store also gamedata (for answer and question analysis)
- I want also ios.