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Tangram vs WebCatalog: catalog facts
Tangram	WebCatalog
Free Free and open source under the GPL-3.0 licence.	Freemium Free to download; accounts are offered on the site for additional features.
Linux	Windows, macOS, Linux, Web, Browser extension
Keeps web apps in a dedicated window apart from the main browser Native GNOME application	Gives web apps their own windows and dock icons Keeps multiple accounts signed in at once
Linux only Not meant for general browsing	Apps are still websites and need a connection to work Pricing details are not clear from the homepage
Downloadable app	Downloadable app, Browser extension
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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