AppLock Master

AppLock Master is the free app lock solution that keeps your private apps, calls, and settings completely secure with multiple authentication methods. Whether you're protecting sensitive photos, banking apps, or personal messages, this app gives you military-grade control over who accesses what on your device.

Secure your apps with the authentication method that works best for you. Lock apps using PIN codes, pattern draws, fingerprint scanning (on compatible Samsung and Android 6.0+ devices), or time-based passwords that change throughout the day. Advanced options like random keyboards, invisible patterns, and adjustable pattern sizes add extra layers of protection against shoulder surfers. You can even display a fake fingerprint scanner or force-close dialog to disguise the real lock screen—a feature called Cover that fools would-be intruders into thinking they've hit a dead end.

Go beyond app protection and lock incoming calls, recent task lists, Wi-Fi and Bluetooth toggles, and even the install/uninstall functions for third-party apps. Temporary unlock options mean you won't need to re-enter your password every single time you open a protected app—set a delay, unlock once to access everything, or let apps automatically lock when your screen turns off. This convenience doesn't compromise security; it simply makes everyday use seamless.

Customize your lock screen to match your style and deter attackers. Choose from various themes, backgrounds pulled from your gallery or system wallpaper, transparent or blurred effects, and smooth animations like fades, zooms, and directional slides. Personalize what appears on screen—show or hide app names, display hint messages, and toggle theme icons on or off.

Intrusion detection is built in. If someone tries to crack your password, AppLock Master captures an intruder selfie so you know exactly who attempted unauthorized access. Hide the AppLock Master icon itself to keep the app invisible, and control screen orientation settings to prevent accidental exposure of your security setup.

Install and uninstall protection ensures AppLock Master can't be removed without your password. The app uses Device Administrator permission solely to prevent unauthorized uninstallation and shutdown—nothing more.

AppLock Master delivers professional-grade app security without the professional price tag. Download it today and take complete control of your device's privacy.