A free app for Android, by Expert Zone.

Door Lock Screen | Pattern is a new door screen lock app with a cool look and cool sound effects. It lets you enjoy the look of a beautiful door screen lock and the sound effects that go along with it. It is also designed to give you the convenience of locking and unlocking your phone with a simple tap. The app has a lot of beautiful HD graphics and cool sound effects that will make you enjoy the experience. The app also lets you set a simple and easy to use password. It is also 100% free and easy to use. You will not need to pay a penny to get all the functionality of the app.

Door Lock Screen | Pattern is a great app for all the people who want to have a simple and easy to use screen lock.