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Windows Firewall Control vs GlassWire: catalog facts
Windows Firewall Control	GlassWire
Free Free to download and use.	Freemium A free version is available. Longer history and extra features require a paid licence.
Windows	Windows, Android
Prompts when unknown programs try to connect out One-click switching between filtering modes	Visual history makes it obvious which application started talking and when Alerts on first connections and on changes to system network settings
Windows only Medium filtering needs rules for every program you use	Longer history retention and several features need a paid licence Windows and Android only, closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

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