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Ktistec vs Hollo: catalog facts
Ktistec	Hollo
Free Free to download and run on your own server.	Free Free to self-host from the GitHub repository.
Web, Self-hosted	Self-hosted
Built for single users and small groups Federates with Mastodon and other ActivityPub software	Federates with Mastodon and the wider fediverse Works with existing Mastodon client apps
Not designed for large public communities Requires running and maintaining your own server	Single-user only You must run and maintain the server yourself
Self-hosted	Self-hosted
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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