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Lumo vs Tinfoil: catalog facts
Lumo	Tinfoil
Freemium Plans are not listed in the research; check Proton's site for current pricing.	Paid Private Chat costs $20 per month; the API and Containers have usage-based charges.
Android, Web	iOS, Web
Zero-access encrypted chat history Provider states it does not track or record conversations	Browser and iOS AI chat OpenAI-compatible inference API
Little public detail on models and limits in the research Requires trusting Proton's privacy claims	Requires an internet connection.
Web application	Web application, Hosted service
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	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 8, 2026

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