I’m a newbe inprogrammation , and i tried to host my with Heroku and as soon i was suprised to see that they are using PostgreSQL to which i’m not used to
So now i need more information about it in order to deploy my first app !
Are you using sqlite3?
If so, it’s not that hard to switch to PostgreSQL:
Otherwise, I have used NoSql ones before that work fine on Heroku.