Android can support multiple users on one device.
Is it possible to write an Android app allowing multiple users on one device to read and write data from a shared local database (e.g. SQLite)?
So if user1 writes something to the DB, user2 can view that, and also overwrite it.
Two options:
(Based on comments from @FunkSoulBrother, @Ewald, and @k3b, with thanks.)