Lock apps with PIN & Face Unlock. Hide photos in Vault, Intruder Selfie & Theme
Protect your privacy with **App Lock: Fingerprint, Pattern** — the all-in-one **app locker**, **private photo vault**, and **privacy guard** for Android. **Lock apps** with **fingerprint lock**, **AI face unlock**, **PIN lock**, or **emoji pattern lock** in just one tap!
Whether you need to secure social and messaging apps, **hide photos and videos** in an encrypted **media vault**, detect unauthorized access with **Intruder Selfie**, or safely share your phone using **Lend Mode**, **AppLock** keeps your personal data protected.
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### 🔐 FAST APP LOCK & BIOMETRIC SECURITY
• **Lock Any Application:** Protect social and messaging apps (such as WhatsApp, Instagram, Messenger, Telegram, TikTok) and system apps (Gallery, Settings, Play Store) to prevent unauthorized access.
• **Fingerprint & AI Face Unlock:** Unlock protected apps instantly using your **fingerprint scanner**, hardware **biometrics**, or built-in offline **Face Lock** with blink liveness detection.
• **Multiple Lock Styles:** Choose between a numeric **PIN code**, alphanumeric **password**, or custom **pattern lock** with an invisible drawing path to prevent shoulder surfing.
• **Auto-Lock New Apps:** Instantly detects newly installed apps and prompts you to lock them with one tap.
### 🖼️ ENCRYPTED PHOTO VAULT & DOCUMENT LOCKER
• **Hide Photos & Videos:** Move sensitive pictures and videos from your public Gallery into a secure, encrypted **photo vault** and **video locker**.
• **Document Vault & Anti-Screenshot:** Safely store confidential PDFs and documents. Built-in screen security blocks screenshots and screen recording inside your **private vault**.
• **Easy Management:** Organize hidden media and restore files to original folders anytime.
### 🎭 APP ICON DISGUISE & CALCULATOR VAULT
• **Calculator Lock Camouflage:** Disguise the **AppLock** icon as a functional **Calculator**. Enter your numeric passcode and tap "=" to access your secret vault.
• **7 Camouflage Icons:** Change the home screen icon to Clock, Weather, Notes, Calendar, or Browser for complete privacy.
• **Fake Error Dialog (Fake Crash):** Show a simulated *"App has stopped"* dialog to deflect snooping eyes before prompting for your real password.
### 📸 INTRUDER SELFIE (WHO TOUCHED MY PHONE?)
• **Catch Snoopers Automatically:** When an incorrect PIN, password, or pattern is entered, the front camera automatically captures an **intruder selfie**.
• **Security Log:** Review photos with exact timestamps to know who tried unlocking your device.
### 👨👩👧 SMART LEND MODE & PRIVACY UTILITIES
• **Safe Phone Sharing:** Handing your phone to kids or friends? Activate **Lend Mode** to limit access only to selected apps with a session timer (15, 30, or 60 min).
• **Emoji Pattern & HD Themes:** Customize your lock screen with expressive **Emoji Pattern** themes and high-definition dark wallpapers.
• **Notification Lock & Uninstall Protection:** Hide sensitive message previews in the status bar and prevent unauthorized app uninstallation.
• **Storage Insights & Screen Off:** Identify storage-heavy apps, lock high-risk apps, and save your power button with 1-tap screen off.
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### 🛡️ PERMISSIONS & PRIVACY DISCLOSURE
• **100% On-Device Processing:** Biometric data, passwords, and hidden vault files are stored strictly locally on your device and never uploaded to external servers.
• **Permission Usage:**
- *Query All Packages (`QUERY_ALL_PACKAGES`):* To list installed apps for you to lock and manage.
- *Usage Access (`PACKAGE_USAGE_STATS`) & Overlay (`SYSTEM_ALERT_WINDOW`):* To detect when locked apps open and display the secure lock screen.
- *Device Admin (`BIND_DEVICE_ADMIN`):* Optional, used only for Uninstall Protection or 1-Tap Screen Off.