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Bluesky vs Seqular: catalog facts
Bluesky	Seqular
Free Free to use; the flagship app is a hosted service built on the open AT Protocol.	Free Free to join, open source under GPLv3.
Android, iOS, Web	Android, Web
Built on an open protocol rather than one closed platform Lets users migrate their identity between providers	Part of the Mastodon Fediverse No ads, bots or algorithmic feed
Most users rely on the official hosted service rather than running their own infrastructure Ecosystem of alternative apps and providers is still maturing	Requires an account One instance among many in the Fediverse
Web application, Downloadable app	Downloadable app, Hosted service
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
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.