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Bluesky vs Threads: catalog facts
Bluesky	Threads
Free Free to use; the flagship app is a hosted service built on the open AT Protocol.	Free Free to use.
Android, iOS, Web	Android, iOS, Web
Built on an open protocol rather than one closed platform Lets users migrate their identity between providers	Large mainstream audience Optional fediverse sharing over ActivityPub
Most users rely on the official hosted service rather than running their own infrastructure Ecosystem of alternative apps and providers is still maturing	Centrally owned and operated by Meta Fediverse support is optional and partial
Web application, Downloadable app	Downloadable app, Web application, Hosted service
Closed source	Closed source
License not stated	License: Proprietary
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.