Auto Screen On/Off is a great application provides the turn on/off feature by double touch without power button. In this applications you'll be own the great feature just only appear on advance model phone. Many attractive features like auto-off screen, battery saving sleep mode , widget off screen with one touch...Now you no longer have to use power button to unlock screen or turn off the monitor. If you usually use the power button it will doesn't work. So how to solve this problem that we produced the double touch application to turn off screen. It supports: slide to unlock, double touch to turn off screen, auto turn off phone. Open automatically or manually turn off the screen display when the phone in his pocket...Especially, The beautiful designed interfaces of application as well as the off-screen effects such as: Scale Old TV, Blink, Shake, TV Static ... This will be the workhorse for you to unlock the screen by double touch or turn off the monitor automatically opens.Features of screen on off by double touch: - The sensor will automatically detect, and auto power on / off screen to help you.
- Widget off screen with one touch
- Auto screen off when put your phone into pocket.
- The advance features double touch to turn off the screen
- Double touch screen off is minisize
- Slide to lock the screen in double tap lock screen application
- The interface is beautiful designed
- Supports multiple off-screen effects, double click screen to lock
- Touch the screen anywhere to turn off the screen
- Unlock screen without using power button
- Simple and crystals interface, screen turn off effect
- No annoying ads in turn off screen application
- Optimization is not consuming batteryRating 5* if you like the knock double tap for lock screen application

// Option A //

To download Smart Screen On Off & Lock mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Smart Screen On Off & Lock mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Smart Screen On Off & Lock from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Smart Screen On Off & Lock in HappyMod App.