Compare software

Arc vs Nook: catalog facts
Arc	Nook
Free Free to download and use. The software is closed source.	Free Free and open source, supported through Open Collective.
Windows, macOS	macOS
Spaces keep work, personal and project browsing genuinely separate Split view and the command bar make keyboard-driven browsing fast	Sidebar and spaces for organising tabs Runs both Chrome and Safari extensions
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	macOS only Young project, recently reached version 1.0
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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