AppLocker
AppLocker is a macOS utility that locks selected apps behind a password or biometric check to help protect private activity on a shared Mac.
What is AppLocker?
AppLocker is a Mac utility for restricting access to selected applications with an extra authentication step. It helps users keep private or sensitive apps from being opened by other people who use the same Mac, such as family members, guests, or coworkers. The app focuses on app-level privacy rather than full-disk or account-level security, making it useful when you want to protect specific tools without changing how the whole computer is used. User-facing features include password protection for individual apps, Touch ID unlocking, and automatic unlocking based on trusted nearby devices or preferred networks. It also includes access history so users can review when protected apps were opened. AppLocker is published by alexandrudenk and is designed for macOS workflows where multiple people may have access to one computer.
Key features
- Lock individual Mac apps with a password
- Unlock protected apps with Touch ID
- Automatically unlock apps when a trusted nearby device is detected
- Automatically unlock apps on preferred Wi-Fi networks
- Review access history for protected apps
- Protect private apps on a shared Mac without changing user accounts
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Safety overview
Status: Mostly safe
This app’s behavior is consistent with its purpose because it controls access to other apps and may rely on permissions needed to monitor or manage launches. That kind of access is privacy-sensitive, so only keep using it if you trust the publisher and installed it intentionally. If you use biometric or device-based unlocking, check the app’s settings so you understand when protection is bypassed automatically. If the app also installs an extra security component, confirm that it belongs to the same product before allowing it to remain active.
Recommendation: Keep AppLocker if you use it to protect specific apps on a shared Mac or want a quick privacy layer without separate user accounts. If you no longer rely on app-level locking, you can remove it and the protected apps will open normally again. Review its permissions after major macOS updates or if its locking behavior changes.
Common paths
/Applications/AppLocker.app
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