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Arc vs Crest: catalog facts
Arc	Crest
Free Free to download and use. The software is closed source.	Free Free and open source under the MPL-2.0 licence.
Windows, macOS	macOS, iOS
Spaces keep work, personal and project browsing genuinely separate Split view and the command bar make keyboard-driven browsing fast	Spaces isolate cookies, history, tabs and credentials per context Chromium and WebKit engines on Mac with per-site rules
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	Early access software with no independent security audit Mac build is for Apple silicon only
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MPL-2.0
Account needed	Not stated if an account is 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 2, 2026

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