What database to use for an Adaptive Content?

Hello. I’m building an application where the adaptivity of the lesson depends on the user’s test result. What database should I use where I get the content from it for this ionic project? Which supports offline and online Auth, and retrieving of data. Suggestions would be nice thanks

For your use case PouchDB I guess is the best option.

https://pouchdb.com/ and https://github.com/pouchdb-community/pouchdb-authentication