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GoToSocial vs Hollo: catalog facts
GoToSocial	Hollo
Free Free to self-host.	Free Free to self-host from the GitHub repository.
Self-hosted	Self-hosted
Lightweight server written in Go Federates with other ActivityPub software	Federates with Mastodon and the wider fediverse Works with existing Mastodon client apps
Fewer features than Mastodon by design Not intended for very large follower counts	Single-user only You must run and maintain the server yourself
Self-hosted	Self-hosted
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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