Can I use Vocaloid in Cubase 8 on a Mac? And can it be used as a plugin?
There are multiple versions of Vocaloid, but none works on the Mac OS X operating system. Based on the official info, you can install it only on Windows OS：Windows 10 (32/64bit), Windows 8.1, Windows 8, Windows 7 (32/64bit).
I have checked the website, but there is no specified data about Mac OS X compatibility.
Official website: http://en.vocaloidstore.com/index.php?gOo=goods_details.dwt&goodsid=6429&productname=