It's not the best image quality, so magnification doesn't help. It could be some custom thing, or done in Reaktor. Aside from that, it probably is not a Mac only application. The only really** good one which is Mac only is AudioEase Snapper, made by the same developer as Altiverb. It's in dire need of an update just like Altiverb 7 was; but it's not exactly a cash cow for them: https://www.audioease.com/snapper/
I do not think it is Soundboard or Soundplant, the kinds of programs used by Radio DJS for drop samples. It could be Mixxx, but I do not think so. It really is a low-res image of it.

Try to figure out a way to send him a message or email and ask.

 

after a closer inspection decided its actually a control surface and not a sample manager as i previously thought still would like to have a sample manager in this type of layout thanks anyway

 

Hehehe. No need to ask the big brainzzz. He explains it (at least part of it) here.