Have you ever imagined to lock your phone with a zip as you lock your bags. Try this new app and experience this effect on your phone. Skull Zipper Lock Screen is highly secure lock screen app in android. Now a days Skull Zipper Lock Screen is one of the best app in android market! Skull Zipper Lock Screen application is a screen lock application that could help you to secure your phone . Skull Zipper Lock Screen help you to lock and unlock your phone screen by zip & passcode. How To Use Th