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Duck.ai vs Lumo: catalog facts
Duck.ai	Lumo
Free Free to use with no account required.	Freemium Plans are not listed in the research; check Proton's site for current pricing.
Web	Android, Web
No account needed Several AI models from different providers in one place	Zero-access encrypted chat history Provider states it does not track or record conversations
Web-based and requires an internet connection Choice of models is set by DuckDuckGo	Little public detail on models and limits in the research Requires trusting Proton's privacy claims
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account 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 September 26, 2026

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