Someone borrows your Mac
They can use the Mac without casually opening private apps.
Lock selected Mac apps before someone else opens them.
macOS gives you strong account security, but it does not give every personal app a simple Touch ID lock. AppLockr fills that everyday privacy gap for shared Macs, quick lending, and screen sharing.
How AppLockr locks apps
Choose the apps you want protected. When one is launched, AppLockr asks for Touch ID or password authentication before access continues. It is built for apps such as Notes, Mail, Photos, Safari, Messages, work tools, and finance apps.
When this is useful
You present or share a screen
Protected apps stay behind authentication when you switch windows.
Your Mac is used at home
Family or roommates can use the device with less awkwardness.
You want low-friction privacy
Touch ID keeps the lock fast for you and harder for others.
Important limitation
AppLockr is a personal privacy utility, not enterprise endpoint security. Admin users or technically advanced users with physical access may still find ways around software-level protections. For most shared-Mac situations, the goal is clear: stop casual access before it happens.