Get 78% off the Knock iOS App

The Knock iOS App unlocks your Mac with just two knocks. This is an easier , faster and more convenient way to get into your Mac. This works like a password but with less hassle. No need to memorize letters numbers and a lot of other characters with this app. You do not have to type in words if you are in a hurry or if your phone is just in your pocket no need to take it out. Having this app will not drain you battery as it requires low energy and is still secure. Get this for only $ 0.99 ( 78% off the regular price of $ 4.49 ).