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Helium vs Arc: catalog facts
Helium	Arc
Free Free and open source, supported by sponsors.	Free Free to download and use. The software is closed source.
Windows, macOS, Linux	Windows, macOS
Ad, tracker and cookie banner blocking on by default No telemetry or background requests without consent	Spaces keep work, personal and project browsing genuinely separate Split view and the command bar make keyboard-driven browsing fast
Younger project than established privacy browsers Built on Chromium, so it follows Google's engine decisions	The Browser Company has shifted its development focus to a newer browser, so Arc receives limited feature work No Linux build, and an account is required to use it
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Account 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.