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Misskey vs Bluesky: catalog facts
Misskey	Bluesky
Free Free and open source under the AGPL. Hosting is separate.	Free Free to use; the flagship app is a hosted service built on the open AT Protocol.
Web, Self-hosted	Android, iOS, Web
Custom reactions, quotes and a built-in file drive that Mastodon lacks Deep per-instance theming and customisation	Built on an open protocol rather than one closed platform Lets users migrate their identity between providers
Heavier to run than other fediverse servers Most documentation and community support is in Japanese	Most users rely on the official hosted service rather than running their own infrastructure Ecosystem of alternative apps and providers is still maturing
Self-hosted, Web application	Web application, Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
Not stated if an account is 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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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