I asked the guys at my LCS, but they weren't sure what the difference is. Which one of these is a mojo refractor, and what's the other one?

At the risk of sounding like a boomer complaining about how things used to be better: when I was a kid, we had BASE and we had REFRACTOR and WE LIKED IT JUST FINE. I can't keep up with all these different parallels, you dang kids.