Most keyboard-locking apps were built for keyboard cleaning. Cats Lock is built for the cat moment. What stands out: • Stealth Lock mode (silent + invisible) for meetings • Customizable warning sound, with import for your own • ⌘L from main window or menu bar • Sandboxed, no analytics, no account • $2.99 one-time, no subscription Built by an indie developer for himself and his cat to enjoy.