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Herond vs Vivaldi: catalog facts
Herond	Vivaldi
Free Free to download; no paid tier is listed on the homepage.	Free Free, funded by default search engine and bookmark placement deals.
Windows, macOS, Android, iOS	Windows, macOS, Linux, Android, iOS
Built-in ad and tracker blocking Integrated crypto wallet and dApp access	Tab stacking, tiling and vertical tabs without a single extension Built-in mail, calendar and feed reader in a side panel
Closed source Strong crypto and Web3 focus will not suit everyone	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
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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