Screen Off and Lock is a free Android application developed by Hoang Duc Lam under the Utilities & Tools category. As the name suggests, this app allows you to turn off and lock your phone screen with just one tap. Although this function already exists on your phone, this app can help you share the burden on the power button, which can become greasy due to excessive use.

With Screen Off and Lock, you can lock your phone screen without having to press the power button. This can be very convenient, especially if your phone's power button is not working properly. The app is easy to use and does not require any special permissions. However, it does use the Device Administrator permission.

If you wish to uninstall the app, simply go to your phone's Settings > Security > Device administrators > Uncheck Screen Off and Lock. Then, go to your phone's Settings > Apps > Lock Screen > Tap uninstall. Overall, Screen Off and Lock is a useful app for those who want to lock their phone screen with just one tap.