Compare software

Vivaldi vs Horse: catalog facts
Vivaldi	Horse
Free Free, funded by default search engine and bookmark placement deals.	Paid 14-day free trial, then USD 70 a year; a payment card is required for the trial.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux
Tab stacking, tiling and vertical tabs without a single extension Built-in mail, calendar and feed reader in a side panel	Trails keep every page linked to the one that led to it Lets you resume research sessions across days
Not open source; only the modified Chromium parts are published The sheer number of settings takes real time to work through	Annual subscription with a card required for the trial Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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