Magic Kicker – Single License
Prevent Multiple People Logging Into a Single Account
If you want to install on more than one Wordpress please consider the 3 Users License.
Features

• Block Sharing Login Info
• Flexible Settings
• Timed Lockouts
• Lockout & Logout Feature
• Record Login IP
• Display Access Logs

A Single License is for one host (one domain or sub domain)
Magick Kicker is a stand alone plugin which you can use on any Wordpress site.