I spend quite a lot of time writing backend services/applications. Nevertheless, there is an understanding that they are not needed for a fairly wide range of tasks.

Some of the most popular are Facebook’s Parse (closed as a service, did not open as a cat) and https://firebase.google.com .

It is clear that it is better to on-premise. What are the options?

They are all quite developed and original, so I leave the choice to the reader :).