If you've previously made a Snap public, you can easily make it private so it's only visible to you and the Solver.
Launch the app and tap My Snaps in the bottom navigation bar to view your list of Snaps.
Find the specific Snap you’d like to make private, then tap to open it.
Scroll down and set the Public Access toggle to OFF. This will remove your Snap from the public feed.
Your Snap is now private and only visible to you and the Solver. You can update this setting any time, giving you full control over whether other Snappers can view your Snap.