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personalDNSfilter vs Acutis Firewall: catalog facts
personalDNSfilter	Acutis Firewall
Free Free to download.	Free Free and open source, listed on F-Droid under the MIT licence.
Windows, macOS, Linux, Android	Android
Works on Android with or without the VPN slot Supports DNS over HTTPS and DNS over TLS	Filtering runs locally on the device Blocks adult, malware and dangerous domains
Desktop use needs Java Filters by domain only, not page content	Small, young project Uses the Android VPN slot, so it cannot run alongside another VPN
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account 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 October 2, 2026

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