OneStream on Mac OS

As others mentioned, you can't access the Windows App on anything that is not Windows, so at the moment you'll need a virtual machine for that (VMWare Fusion, Parallels, VirtualBox, etc). There is a limited mobile interface accessible via web browser, meant to display basic reports - that will probably work on Safari, but there is little you can do with it.

We should soon get a release with a completely new browser-based interface, which was previewed at Splash; that should work on Mac just fine. It's currently in private beta only for a small subset of customers, but the program is expanding; you can get in touch with your Customer Success Manager if you'd like to be part of that. General availability is expected for late next year.