Today Polyspectral MBC has been updated to version 1.1.3. The only change is that there is now a free demo version of the product.
The demo is functionally identical to the full version, with one difference: the output is periodically replaced with silence. This approach to demo distribution was inspired by Valhalla, who have used it effectively for years.
Download Demo (v1.1.3)
A newer version (v1.1.5) is also available on the MBC product page, with AAX support added.