Perfect AppLock: A Comprehensive Android App Locker
Perfect AppLock is a highly-rated Android application offering robust protection for your apps using PIN, pattern, or gesture locks. Safeguard sensitive apps like WhatsApp, Facebook, Twitter, Skype, SMS, email, gallery, camera, and USB connection, all with the features of the paid version, completely free.

Key features include:
- Comprehensive App Locking: Secure any app with your choice of PIN, pattern, or gesture.
- Screen Filter Control: Adjust screen brightness for individual apps.
- Rotation Lock: Prevent accidental screen rotation within specific apps.
- Intrusion Detection: A "watchdog" feature automatically captures a photo of anyone who fails three password attempts.
- Device Feature Locking: Lock WiFi, 3G data, Bluetooth, sync, and USB access.
- Customizable Locking: Set time-based or WiFi-based locking rules.
Perfect AppLock also includes deceptive fake error messages to deter intruders and utilizes minimal resources for optimal performance. Remote control via SMS commands is another useful feature. Supporting various password types, this app provides a complete solution for app locking and privacy enhancement. Compatible with Android 5.1.1 Lollipop and higher, it's trusted by millions.
In short: Perfect AppLock provides a strong security layer for your Android device, combining app protection with additional features like intrusion detection and customizable settings. Download it today and enhance your privacy.