How to see exactly what pages have been gone through on an iPhone?

Here's the thing-

I lent my iPhone to a friend and now I want to know if he's been on certain pages on it. I hope I'm being clear here, is there a way to know like he's tapped here and there or he's opened this app or this option etc.
is there an app for that or something? Please any help is appreciated!

Hmm a smartphone that can track every single step? Hmm well to my knowlegde it is possible only to a certain depth. Like you can see the last 6 apps that was visited and not further.

maybe pressing the back button?

You could check the history in Safari. Tap the book icon on the bottom & you'd see the option to go through the history.

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