New Delhi, June 1 (IANS): Chinese mobile internet giant Alibaba Group on Wednesday launched "Privacy Knight" -- India's first free app-lock with face-lock feature that enables users to unlock their protected apps through a one-second selfie.

"Face Lock is set to change the way people protect their privacy. It is the next big thing after fingerprint lock. The age of face lock is here," Ebrahim Popat, Country Manager of 9Apps, an Android marketplace within Alibaba Mobile Business Group, said in a statement.

"Privacy Knight" works on a one-second-step for face locking, saving users the trouble to remember patterns or pincode. 

The face lock and blink detection setting ensure a 99.47 percent accuracy of face recognition. 

"Privacy Knight" is safer than other locks as no user information upload is requested since face lock is accessible offline, the company claimed.

Besides face lock, "Privacy Knight" also offers users protection including app lock, vault, clean, themes, intruder selfie, fake cover, fake icon and more.