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Lumo vs Duck.ai: catalog facts
Lumo	Duck.ai
Freemium Plans are not listed in the research; check Proton's site for current pricing.	Free Free to use with no account required.
Android, Web	Web
Zero-access encrypted chat history Provider states it does not track or record conversations	No account needed Several AI models from different providers in one place
Little public detail on models and limits in the research Requires trusting Proton's privacy claims	Web-based and requires an internet connection Choice of models is set by DuckDuckGo
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 1, 2026

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