What is the backend in mobile development?

Question

Java

As far as I understand, everything related to the visual component (handling clicks, changing the screen, alerts) is all front-end, and the back-end is getting data from different sources, saving it in different sources, and interacting with the database? Do I understand it correctly? Can you please add what is the backend for mobile development?
Thank you.

Answer 1

There is no backend in mobile development itself. An application can access some REST API for data, for example, and here is the code running on the server and providing this API is the backend.