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Mastodon vs Seqular: catalog facts
Mastodon	Seqular
Free Free and open source under the AGPL. Hosting is separate.	Free Free to join, open source under GPLv3.
Android, Web, Self-hosted	Android, Web
Chronological timelines with no engagement ranking Federated, so moving servers does not mean losing your network	Part of the Mastodon Fediverse No ads, bots or algorithmic feed
Your experience depends heavily on which server you join Running a server has real moderation and maintenance cost	Requires an account One instance among many in the Fediverse
Self-hosted, Web application	Downloadable app, Hosted service
Open source	Open source
License: AGPL-3.0	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.