قفل الشاشة is an Android app developed by yashoi.anon that allows users to lock their screen with just one button press. The app is designed to provide a quick and easy way to lock your phone screen without having to go through the usual process of pressing the power button and then swiping to unlock.

To use the app, simply add it to your home screen and press the icon whenever you want to lock your screen. However, the app requires permission to access your device's administrator feature, which can be granted by going to your phone's settings, then security, then device administrator, and enabling the feature for the app.

Overall, قفل الشاشة is a useful app for those who want to simplify the process of locking their phone screen.