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GlassWire vs Fort Firewall: catalog facts
GlassWire	Fort Firewall
Freemium A free version is available. Longer history and extra features require a paid licence.	Free Free and open source.
Windows, Android	Windows
Visual history makes it obvious which application started talking and when Alerts on first connections and on changes to system network settings	Per-application and global network rules Wildcards and parent-process based rules
Longer history retention and several features need a paid licence Windows and Android only, closed source	Windows only Requires familiarity with firewall rules
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.