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Jan vs Lumo: catalog facts
Jan	Lumo
Free Free and open source. Using a third-party cloud model through Jan costs whatever that…	Freemium Plans are not listed in the research; check Proton's site for current pricing.
Windows, macOS, Linux	Android, Web
Runs fully offline on your own computer when you want it to Same interface for local models and for OpenAI, Anthropic, Google, Mistral and others	Zero-access encrypted chat history Provider states it does not track or record conversations
Still pre-1.0 and moving fast; features appear and change between releases Adding a cloud provider means putting that provider’s API key into the app	Little public detail on models and limits in the research Requires trusting Proton's privacy claims
Downloadable app	Web application
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Needs internet
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 26, 2026

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