Pluralinput is described as 'Use multiple mice and keyboards on the same PC, at the same time' and is an app in the OS & Utilities category. There are four alternatives to Pluralinput for Windows. The best alternative is EitherMouse, which is free. Other great apps like Pluralinput are Dicolab TeamPlayer (Paid), BeTwin (Paid) and Automatic Mouse Switcher (Free, Open Source).
Instantly changes settings when any mouse is used: swap buttons mirror cursor adjust speeds and more... Leave multiple mice on a pc and automatically swap buttons on each mouse. Have a left-handed and a right-handed mouse always connected and ready to use.
TeamPlayer gives you multiple cursor on screen of your own PC for every mouse connected. It's generic, so it works with any program. Simply hook up multiple mice to your computer and work together, using any application.
BeTwin is a software that enables two to five users to share the computing power of a single computer. It creates a virtual PC station for each user to simultaneously and independently operate in each station. Installation is simple.