You can simply click the icon of One Touch on your desktop and the phone will be locked immediately .this app intend to protect the power button of your phone.
You don't have to worry about your power key breaking down because you can use this lock screen to do the same job!
This is the perfect cool lock screen apps. Freeze screen at any time.With this application you can simply click on the screenlock.
icon to immediately lock your phone screen. This reduces the use of the power button and extends its working life.

One Touch uses the Device Administrator permission.If you want to delete this appplease do the following steps:Setting ->Security ->Device Administrators->One Touch ->Deactivate.Only by doing this can you delete this app.