Use APKPure App
Get Quickly Lock Screen old version APK for Android
स्क्रीन बंद करने और सत्ता बटन को छूने के बिना डिवाइस बंद करने के लिए एक क्लिक करें
One click to turn off screen and lock device without touching power button。
Use the app first，You must activate administrator will allow the app to preform the following operation：Lock Screen.
The app is lightness and no activity.
The app is sample "ABC" locker
You just need to touch the app icon lightly，the phone screen can be turned off quickly.
AppLock can protected you applications