Compare software

Helium vs Vivaldi: catalog facts
Helium	Vivaldi
Free Free and open source, supported by sponsors.	Free Free, funded by default search engine and bookmark placement deals.
Windows, macOS, Linux	Windows, macOS, Linux, Android, iOS
Ad, tracker and cookie banner blocking on by default No telemetry or background requests without consent	Tab stacking, tiling and vertical tabs without a single extension Built-in mail, calendar and feed reader in a side panel
Younger project than established privacy browsers Built on Chromium, so it follows Google's engine decisions	Not open source; only the modified Chromium parts are published The sheer number of settings takes real time to work through
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	No account 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 September 21, 2026

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