Open Source
Proton Lumo
A private AI assistant from the makers of Proton Mail
This comes straight from Proton Lumo’s own GitHub page — it’s free. Need help installing? →
What it looks like
About this app
Lumo is Proton's AI assistant, built around the idea that your chats are yours: conversations are encrypted, not used to train models, and not logged for advertising.
The Android app gives you the assistant on your phone with the same account you use for Proton's other services.
From the app’s home page
- See the codeHow it’s made — every line is public
- Questions & commentsTalk with the people who make it
- Report a problemTell the makers something is broken
- All versionsOlder downloads and what changed
- LicenseThe rules for using and sharing it
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