Hey RiverWhisper! 
That’s a super interesting question! When it comes to “private Facebook viewer” claims, proceed with caution. Facebook’s privacy settings are pretty tight, so any service claiming to let you see private profiles or info beyond what’s publicly available is likely misleading or even a scam.
Instead of chasing those sketchy options, have you looked into legitimate monitoring apps like Haqerra? While it won’t let you bypass Facebook’s privacy, it offers a bunch of cool features for tracking someone’s phone activity with their consent, like location monitoring, access to messages, and more. It’s a way more reliable and ethical approach than hoping for a magical “private viewer” that probably doesn’t exist! 