Novice question … if you purchase SecureLine multi-line for Windows, does it work on IOS systems (iphone) … and, if you purchase SecureLine multi-line through apple/itunes for IOS, does it work on Windows products? … I accidentally purchased SecureLine multi-line for windows through my laptop and then SecureLine Multi-line for IOS through my iphone 
I am asking if each provide protection across operating systems.
Afaik, yes.