Lumo

Proton · Part of Proton apps

A private AI assistant by Proton

Get Lumo

Download on the App Store Get it on Google Play Get it with Aurora Store Get it on F-Droid Get it on GitHub Get it on Zapstore

What are these stores? App Store, Google Play, Aurora Store, F-Droid, GitHub, Zapstore

Ask anything. It’s confidential. Meet Lumo, the privacy-first AI assistant created by Proton, the team behind encrypted email, VPN, password manager, and cloud storage trusted by over 100 million people. Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat today.

Developer

Proton

Website

lumo.proton.me/

Source code

github.com/ProtonLumo/android-lumo

Added to AppCosmos

9 October 2026

License

GPL-3.0-only