|Apple MacOS Companion Application || This is the latest Mac OS version of the popular OPN 2001 Companion Application| | class="center" | EGFS0398
Mac OS X 10.15 Catalina
| class="center" | Download |- |Apple MacOS Companion Application || This is the previous Mac OS version of the popular OPN 2001 Companion Application| | class = "center" | EGFS0397
Mac OS 10.14 Mojave
| class="center" | Download