【Over 3,000,000 downloads, thank you for your support!】

Just one touch to turn off and lock the screen.
Frequent use to turn the screen on/off can easily damage the phone's hardware power button. We provide software buttons to replace it and extend its useful life.

? After enabling the Device Administrator permission to lock the screen, you must uninstall the application from the "Uninstall app" option in the Screen Lock Settings. ?

★ You can set the buttons to display in different locations:
  - Display on home screen
  - Display in the notification panel
  - (floating button) Floating on other apps

★ Features for all buttons:
  - Built-in lots of free icons or your custom icons
  - Vibration/sound/animation of the locking process
  - Fix can't unlock the screen with biometric authentication (fingerprint/iris/face)
  - (Assistive Touch) Show "Quick Menu" to quickly access to your favorite apps, games, settings

★ Features of the floating button:
  - Adjustable button size/opacity
  - Display weather information
  - Multiple button shapes (round/rectangular/narrow bar/love)
  - Automatically show/hide when the screen is in the fullscreen mode or the selected application is displayed
  - Single tap/double tap/swipe the button to trigger the actions:
    ↪ APP shortcuts
    ↪ RAM cleaner (speed booster)/Flashlight
    ↪ Home key/Back key/Recent apps/Last used app
    ↪ System settings/Notification panel
    ↪ Screen capture/Power menu (Android 5.0+)

★ Advanced features:
  - Wave your hand over the proximity sensor (near the front camera) to wake up or lock the screen
  - Long-press the Home button to lock the screen or do the actions (Android 7.0+)

★ Permissions required:
  - This application requires Accessibility Services to support the following features.
    ↪ Turn off or lock the screen
    ↪ Home key/Back key/Recent apps/Last used app
    ↪ Make the floating button automatically show/hide

★ FAQ:
  - https://simistudio.net/screenlock/faq.html