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NetGuard vs GlassWire: catalog facts
NetGuard	GlassWire
Freemium Free and open source. Some features are unlocked by an in-app purchase.	Freemium A free version is available. Longer history and extra features require a paid licence.
Android	Windows, Android
Per-app blocking with separate Wi-Fi and mobile rules, without root Live traffic log showing exactly what each app contacts	Visual history makes it obvious which application started talking and when Alerts on first connections and on changes to system network settings
Occupies the VPN slot, so it cannot run alongside a real VPN Some features are unlocked by an in-app purchase	Longer history retention and several features need a paid licence Windows and Android only, closed source
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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