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This app uses the Device Administrator permission. It is required to enable locking your phone through the app.
Hardware power button of our devices soon wear out because of excess use. To minimize the use of the power button, this app does half the work. It locks the phone when the app starts. But, still you need to use the power button to unlock your phone.
This app is battery friendly as kills itself when the phone locks. So, no need to worry about excess battery consumption as this app does not run in the background.
How to uninstall
To uninstall this app, open Settings » Security » Device administrators » Lock and Sleep and select Deactivate. Then, you can uninstall this app normally.
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