A free program for Android, by AppLock DoMobile.

AppLock Theme Beam is a beautiful, colorful, and easy-to-use lock screen app with a modern and intuitive interface. It is a simple, yet powerful and easy-to-use app that will help you protect your privacy and lock your phone in a way that is not easy for anyone to break into.

How to set up the AppLock Theme Beam

First, you need to install the AppLock app from Google Play. If you do not have it installed, you will be redirected to the download page. After you have downloaded it, you need to open it and click on the “Enable” button.