While no legitimate tool can "hack" Instagram's server-side encryption to show you a locked profile without permission, several tools are often cited in lists of the "top" viewers for their specific features:

If you share a friend, ask that friend to show you the content or vouch for you.

: Users have reported paying for "lifetime access" only to find the app does not work as advertised. Google Play Legitimate Functionality vs. Myths Instagram Restrictions

You never see the private photos. The scammer earns affiliate revenue from the survey.