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NxFilter vs Control D: catalog facts
NxFilter	Control D
Free Free for all uses, including commercial ones.	Freemium A free tier is available. Paid plans are charged per endpoint.
Self-hosted	Windows, macOS, Linux, Android, iOS
Per-user policies and reports with Active Directory integration Screen time control and data caps	Per-device profiles and very granular per-service rules Encrypted DNS with apps for every major platform
Not open source More setup than needed for a single household	Filtering happens on their infrastructure, so they see your lookups Most useful features are behind a paid plan
Downloadable app, Self-hosted	Downloadable app, Hosted service
Closed source	Closed source
License not stated	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 23, 2026	Official website Full listing and sources Checked September 22, 2026

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