Wikipedia: Mindspark is an adaptive-learning program (ITS) built by Educational Initiatives (EI). It is a cloud-based application that can run on computers, tablets, mobile phones and allows users to connect to Mindspark servers via a web browser.
Looks to me like it's a java based program for students taking E-Learning courses. The only users w/ these alerts that I have seen - just so happen to be interns in school still.
https://mindspark.in/
Not to be confused with PUP.Optional.Mindspark - an annoying adware system.
Might want to check with the clients before you rip out the PUP.
