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Open Hitomi vs Dicio: catalog facts
Open Hitomi	Dicio
Free Free and open source; AI chat uses your own API key.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Floating overlay usable on top of other apps Bring-your-own-key chat	On-device speech recognition with Vosk Speech and graphical answers
Early-stage project with a small user base Chat requires an API key from a model provider	Limited set of skills compared with commercial assistants Android only
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0-or-later	License: GPL-3.0
Not stated if an account is needed	No account 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.