Little Snitch still costs money, it's just a different licensing model. It's not SaSS, so only a one-time fee to purchase for the tool. The reason I'm open to

Little Snitch still costs money, it's just a different licensing model. It's not SaSS, so only a one-time fee to purchase for the tool. The reason I'm open to paying a monthly fee for a SaSS offering is to keep getting new features and timely security updates, and support ensuring the recurring expense aspects of the service can stay alive. It's not entirely clear to me yet why PortMaster needs to be a SaSS, but it's not implausible. I don't have any Windows or Linux desktop machines in regular use currently, looking forward to trying this out once the Mac version exists.