@syko24 free... and useless:

Limitations of the free license:

The free license is limited to five locks per day which means the free edition defends your system against five unique attacks per day. [...] The free license does not contain reporting (like the PRO edition does).

Also, no official support for Windows Server 2016.

https://cyberarms.net/download-pricing/installation-configuration.aspx

@scottalanmiller said:

I assume that there is no means of using DA with Macs, for example?

Not at present. You can, however, use the same RAS servers for VPN. Perhaps if/when Macs gain more traction in the mainstream business market, we'll see that shift.