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OSArmor vs DefenderUI: catalog facts
OSArmor	DefenderUI
Freemium Free to download; the site also lists an enterprise edition.	Freemium The standard edition is free; a Pro edition adds WDAC and sandbox features.
Windows	Windows
Blocks common malware delivery techniques such as Office macros launching shells Over 250 built-in policies with no setup needed	Exposes Defender protection settings hidden by Windows Security Free edition covers most home users
Windows only Behaviour blocking can stop legitimate scripts and admin tools	Windows 10 and 11 only Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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