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Историческую версию Lock Button можно получить на Android
Одно прикосновение замок
QLock is quick, simple and convenient way to lock your device without using hardware buttons.
Features:
- One touch to lock the device.
- Beautiful material design icon.
- Launcher shortcut.
Usage:
You need to enable device administrator permissions for this app in order to allow it to lock the device. Once enabled, You can either place a shortcut for this app on your home screen or use it from the app drawer.