The latest APK of Perfect Applock has been released by its developers and free available for download on several Android app stores. Basically it is used for protecting Android apps. Perfect AppLock! lets you protect any applications you want with PIN, Pattern or Gesture. You can lock: Whatsapp, Facebook, Twitter, Skype, SMS, Email, Gallery, Camera, USB connection, Settings and any apps you choose. Their are several apps, but perfect app lock is specialist for Android users. It comes with brilliant features.

• Lock any apps by using pin,pattern or gesture.
• Screen Filter support: Effectively manage screen brightness of individual apps
• Rotation Lock support: Prevents unwanted screen rotation on each apps
• Watchdog : After 3rd failed password attempt, built-in camera takes photo of attacker.
• Lock WiFi, 3G data, Bluetooth, Sync, USB (MTP is not supported)
• Lock Home Screen, Lock Outgoing Calls, Lock Incoming Calls, Lock App Install/Uninstall 
• Time, WiFi based locking policy supported.
• Fake Popup : Displays fake error message when locked app is launched.
• Minimum resource used.
• Remotely start AppLock service using SMS command.
• Gesture, Pin, Pattern, Text password supported.

Now free download the app and install it on your phone. It is totally free and easy to use. If you wish to get high performance with your app, please keep update it regularly.