Block any App.
Protect your Privacy.
Native security. Lock access to sensitive applications with Touch ID, Master Password, or Fake Crash. If someone tries to snoop, NanoLocker snaps their photo.
Blocked Applications
More than just a blocker
Engineering-first approach to security and privacy.
Fake Crash Mode
Throw them off the scent. Instead of a lock screen, NanoLocker simulates a realistic system error. "The application quit unexpectedly." Curious eyes will just think your Mac is acting up.
Status: Terminated due to Signal 9
Code: 0x00000000 (FAKE_CRASH)
Intruder Selfies
Someone trying to guess your password? We snap a silent photo and save it to your local gallery.
Native Touch ID
Unlock your apps as fast as you unlock your Mac. Deep integration with the Secure Enclave.
System Level
Security overlay at ScreenSaver +1 level. Blocks visual access and interaction completely.
Ghost Mode
Hides apps rather than quitting them. Music keeps playing, downloads keep running.
100% Local
No accounts, no tracking. Your settings and photos never leave your machine.
Privacy Commitment
NanoLocker follows the "Privacy by Design" principle. We don't use analytics servers or upload your data to the cloud. Your purchase is handled directly and securely by Apple via the App Store.