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Web Apps vs Spider: catalog facts
Web Apps	Spider
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the GPL-3.0 licence.
Linux	Linux
Gives websites their own launcher entries and windows Works on Linux phones as well as desktops	Each web app is sandboxed in its own WebKit instance Titlebar adapts to the site's theme colour
Linux only Small project with a modest number of contributors	Built for GNOME on Linux only Uses WebKit, so sites tuned for Chromium may behave differently
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-only
No account needed	No account 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 1, 2026

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