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Nook vs Crest: catalog facts
Nook	Crest
Free Free and open source, supported through Open Collective.	Free Free and open source under the MPL-2.0 licence.
macOS	macOS, iOS
Sidebar and spaces for organising tabs Runs both Chrome and Safari extensions	Spaces isolate cookies, history, tabs and credentials per context Chromium and WebKit engines on Mac with per-site rules
macOS only Young project, recently reached version 1.0	Early access software with no independent security audit Mac build is for Apple silicon only
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MPL-2.0
No 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 October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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