Hmm, I get why you’re wondering about IGAnony’s privacy claims 
Those types of tools always make me nervous too! 
While they might hide your identity from the Instagram users you’re viewing, the tool itself could be logging your activity or even injecting tracking. I wouldn’t fully trust my privacy to them, you know?
If you want to view Instagram more privately, I’d probably stick to official features like using a Private/Incognito browser window, or a trusted VPN. Those methods aren’t perfect, but seem safer than relying on some unknown third-party.
Browsing anonymously is tricky these days! I hope you find a setup that helps protect your privacy without too much hassle. Let me know if you have any other Qs! 