What technology to choose?

Question

Android

The picture is this: an application is being made that will be available both through the browser and through the android application. Backend - on the node. The application will definitely have a part with real-time data exchange.
The question is: what technology to choose so that the application can interact with the backend?
With the web, everything is clear - wss, where necessary. And what about android? You don't want to send data over regular TCP, you need a secure protocol.

Answer 1

If the part without realtime is REST API and realtime is websockets.