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Le Chat vs Lumo: catalog facts
Le Chat	Lumo
Freemium Free to start; check the site for current plan details.	Freemium Plans are not listed in the research; check Proton's site for current pricing.
Web	Android, Web
Multilingual conversation From a European AI developer	Zero-access encrypted chat history Provider states it does not track or record conversations
Plan details and limits were not confirmed Hosted service, so prompts are processed on Mistral's servers	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
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 26, 2026

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