Local Privacy Features, Free to Use
Portmaster's core features are free: connection monitoring, DNS filtering, and per-app firewall rules. There is no trial period. The free tier works fully as a standalone tool.
Discover Portmaster
Paid Plans for SPN and Advanced Features
SPN access and investigative features require a paid plan, as they involve additional server infrastructure and bandwidth costs. Revenue from subscriptions funds continued development of Portmaster and SPN. Both remain open source.
Discover SPN