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Espial vs Betula: catalog facts
Espial	Betula
Free Free and open source under the AGPL-3.0 licence.	Free Free and open source under the AGPL-3.0 license.
Web, Self-hosted	Web, Self-hosted
Multi-user support Simple SQLite storage	One binary and one SQLite file Fediverse following, likes and reposts
Requires running your own server Small project with a modest feature set	Single user per instance Fediverse features need a public domain and HTTPS setup
Self-hosted	Self-hosted
Open source	Open source
License: AGPL-3.0	License: AGPL-3.0
Account 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 October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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