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ChatterUI vs RikkaHub: catalog facts
ChatterUI	RikkaHub
Free Free to download from its GitHub repository.	Free The app itself has no stated price; model access depends on the providers you configure.
Android	Android
Runs models on the phone itself Can also connect to API providers of your choice	Supports multiple LLM providers in one app Native Android app
On-device performance depends on the phone's hardware The research does not state the license	Android only Licence not confirmed in the research
Downloadable app	Downloadable app
Closed 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	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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