Service demonstration software?

Question

Android

Good day everyone.
Perhaps someone came across software to demonstrate it on mobile devices.
An example is this:
A client came, took a tablet, saw the initial page with the content or description of something, chose the desired item, fell below as we intended, and so on. + Would like to have the ability to list content on the side for convenience.
I will be very grateful for advice.

Answer 1

You can make a web page. And on any device, just open a browser.

Answer 2

Sounds like any PowerPoint presentation