A free app for Android, by AppLock Inc..

Knock Lock – AppLock is an application that allows you to lock your phone using a digital password, and also using a pattern or pin. It can also be used to lock the apps, so that no one can access them. The password can be set to any value you want.

The app also has an option to make the phone more secure by adding a pattern or pin to the application.

How to set the password?

When you install the application, you will be able to set the password in the settings. You will be able to access the settings by clicking on the settings icon.

How to create the pattern?

When you install the application, you will be able to choose to create a pattern or a pin to set as the password.