DS has database functionality
There's a Premium capability for CloudStore
There are some posts in this forum about using FireBase
You can convert modules in npm and nodejs to work with DS
(the next release of DS currently in Beta testing makes this much easier).
In my experience DS is at least 10 times easier to learn that Android Studio (with Java or Kotlin),
and at least 10 times quicker to write, test (fix, re-test, etc).
There's plenty of documentation, tutorials, video tutorials, etc
and there are samples/examples for most functions that you can copy and modify.