Screen Off and Lock is a free Android application developed by Utilities Soft that allows users to lock their device with a fingerprint or by using a launcher shortcut, widget, notification, floating button, or search button. It also has additional features such as screen off animation, screen lock/unlock sound effect, and screen off vibration.

One of the most significant advantages of this app is the ability to lock your device using your fingerprint, which is a convenient and secure way to protect your device. The app is easy to use and has a simple interface. It is also lightweight and does not consume too much battery power.

It is worth noting that for those who cannot see the screen off animation, there are procedures to follow to enable it. For Android 4.x, go to "Settings > Developer options > Transition animation" and select 1x for this option. For Android 2.x, make sure you select the option "All animations" under "Settings > Display > Animation".

Overall, Screen Off and Lock is a useful app for those who want a quick and easy way to lock their Android device with a fingerprint or other methods. It is also free and does not require any personal information or contact with the developer.