AirSig Quick Locker is a screen-locker application, allowing you to unlock your screen and activate your designated Apps all in one shot.
Now it’s super easy to go through the unlock process, all you need to do is to push the icon button you want to activate and sign a simple letter in the air. For example, writing an "a" to activate Facebook. Or doing the same way to directly make a call. You can also combine the quick locker with current pattern lock, which can be a backup almost all android users are familiar with.
In short, AirSig Quick Locker has two advantages, the first one is super easy and fast, now you can unlock the screen and activate Apps all in 0.5 second. The other is security, unlike pattern lock or password, signing in the air is very hard to be copied even after being peaked.