Has anyone tried the instapv app highlights viewer feature yet?

I’m trying to view some highlights without the account owner knowing and was wondering if instapv’s feature actually works anonymously, has anyone had any success or issues with it?

I’m not familiar with “instapv” specifically, and third-party apps claiming anonymous Instagram viewing frequently violate Instagram’s ToS, get patched quickly, or are outright data-harvesting traps. For anonymous highlight viewing, StorySaver or browsing via a secondary burner Instagram account are more reliable and safer approaches.