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DNSNet vs Quad9 Connect: catalog facts
DNSNet	Quad9 Connect
Free Free, with source code published on GitHub.	Free Free and open source; the Quad9 DNS service is also free.
Android	Android
System-wide blocking on Android without root Uses host blocklists to filter ad and tracker domains	Official app from Quad9 Works on Android and ChromeOS
Occupies the Android VPN slot, so another VPN cannot run at the same time Android only	Tied to the Quad9 DNS service No iOS or desktop version
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0-or-later
No account needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
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.