Privacy Knight, # 1 ad-free privacy App lock & photo Vault designed by Alibaba Group.

Secret Door , change icon to disguise Privacy Knight to a Secret Dialer. Smart app hider.
Privacy Vault , hide videos/pictures into vault, no need to lock galley but still secure safety.
Face Unlock , the fastest and safest biometrics lock, is here to guard privacy.

- Smart app locker: With this app protector, you can lock apps, lock gallery, SMS, lock Contacts, lock facebook, Hike. Lock shopping & banking apps to ensure mobile security, like Flipkart, Amazon, BHIM, Mobikwik, Freecharge.
- Perfect Vault app: More than just smart video lock/ photo lock, you can hide private pictures, videos into a locked privacy media Vault, no embarrassing moments any more.
- Clear browser history with privacy Clear, delete search history of browser with one tap.
- More fun with Unlock, Face Unlock, Fingerprint Unlock, PIN, Pattern, Disguise Cover are well supported.
- Curious about who are the intruders? Selfie Intruder helps you detect all break-in snoopers.

Usage Senario
- How to secure gallery safe? Lock gallery or hide video and images to Vault.
- How to keep contacts safe? Lock Dialer & contacts or disguise phone number.
- How to keep password from being peeped? Use Fingerprint unlock, face lock or enable Invisible Unlock Path.
- How to protect privacy app? Enable Prevent Uninstallation or Secret Door to hide app.
- How to know who are prying your privacy? Check Intruder selfie and Protection Log.

Highlighted Features of Privacy Knight
App Lock
Lock aaps which are not for sharing. Accessing locked apps will be required to unlock first, a good complement to screen lock, best privacy aaplock to keep safe all secret apps. Safest app locker ever.
Privacy Vault
#1 photo hider and gallery locker. Hide pictures into photo vault; hide Videos into the video Vault. Keep safe of your Gallery.
Privacy Clear
Perfect history cleaner: Remove your browsing history. Clear history in one second .
Face Unlock (Biometrics Lock)
Powered by advanced face detection algorithm, real time face recognition technology, Face unlock offers best unlock experience. Unlock in one second, free your hands. password will never been peeped.
Fingerprint Unlock (Biometrics Lock)
Improved Fingerprint lock well supports Smartphones with Fingerprint Sensor above Android 6.0 and Samsung Smartphones with fingerprint scanner.
Intruder Selfie
More than just a safe aap lock, it can identity theft or intruders by taking their selfie secretly.
Secret Door
A special way to hide app: Hide icon of Privacy Knight by change icon to a Dialer, Dial Correct PIN to Unlock.
Disguise Cover
Passcode is not the only way to unlock. Disguise Cover ensure your security while bringing more fun.
Hide Notification
Hide preview text from notification bar, no sensitive notification will be peeped.
Protection Log
A timeline where you can check when intruders are trying to unlock locked apps.
Prevent Uninstallation
Prevent Privacy app from being uninstalled by Snoopers.
Invisible Unlock Path
Hide Path While Drawing Unlock Pattern, avoid to be peeped by intruders.
Incoming Call Lock
Private calls stay private. It’s not a call blocker, but a call lock keep your private call safe.
Free Themes
Plenty of free unlock screen themes to choose, more to be expected.
Language Support
As a privacy software, Privacy Knight support 15 languages, ensuring app security safe.

Stay connected with Privacy Knight
* Official Website: http://privacyknight.alibaba.com/
* Facebook: https://www.facebook.com/PrivacyKnightAppLock/
* Google Community: https://plus.google.com/communities/103969299260167609350