Compare software

hBlock vs Zen: catalog facts
hBlock	Zen
Free Free to download and use.	Free Free and open source.
Linux, Command line	Windows, macOS, Linux
Single portable POSIX shell script Combines several blocklist sources	Covers all browsers and apps with one install Blocks trackers as well as ads
Only protects the machine whose hosts file it writes No per-app or per-request control	Network-level filtering may need troubleshooting with some apps Not available for mobile devices
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	Not stated if an account is needed
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 1, 2026

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