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

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