It’s no surprise that Samsung would like to make it easier to get iPhone users to jump the ship and join them. But it can be scary to make the leap from iPhone to Samsung phones (and vice versa), so they have created a web app where you simply scan a QR code with your iPhone and find out how Samsung’s One UI works via the web browser.
Of course, it’s quite limited, but you can test what certain apps look like and play around with settings and so forth. When you test it, there are also some notifications, messages, and phone calls so that you really get a sense of how it works. If you want to check it out then go to Samsung iTest, scan the QR code and you’re good to go.