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Sharkey vs Akkoma: catalog facts
Sharkey	Akkoma
Free Free to self-host.	Free Free to self-host; the project accepts donations.
Web, Self-hosted	Web, Self-hosted
Tracks upstream Misskey while adding features Federates with Mastodon, Akkoma, Pixelfed and more	Federates with Mastodon, Pleroma and other ActivityPub software Custom emoji reactions
Hosting an instance requires server administration Smaller project with a small maintainer team	Running your own instance requires server administration Diverges from Pleroma mainline, so Pleroma guides may not apply
Self-hosted	Self-hosted
Open source	Open 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	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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