Please follow the steps below to uninstall OneClickMonitor:
1
How to Uninstall OneClickMonitor?
Open "Settings" and then tap on "Security"
Tap on "Phone Administrators"
Uncheck "OCM"
A Popup will appear, click on "Deactivate". A confirmation alert will show, tap on "OK"
Go back to "Settings" and then tap on "Applications"
Tap on "Application Manager" and then look for "OCM" and uninstall it.