App Security Protect Lock Pro is one of the best protector which could protect your privacy.This application, help you for your private information on your phone to be exposed to other people and can lock your contacts, phone calls, e-mail, sms, photos or any application in your android device.
Protect your Privacy. The best free App Lock
Keep your privacy by locking apps like WhatsApp, Facebook, Gallery or anything you want.
9Apps 4.9
