Is a locked Apple Note safe enough?
Locked Notes work for short text with a generic title and a separate Notes password. Files, photos, and passcode-shared households need Blopman.
Still OK in Notes
Door codes, short journal lines, with a bland first line.
Move out
PDFs, ID photos, screenshot stacks, anything you would not show on the Notes list title.
FAQ
Passcode-locked notes?
They open with the same unlock as the phone—weak if that passcode is shared.