Ask anything. It’s confidential.
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.
| Package Name | me.proton.android.lumo |
| Requirements | Android 10 (API 29) |
| Author | Proton |
| APK Size | 140.3 MB |
| Categories | Productivity and Business, Personal Assistants |
| Source Code | https://github.com/ProtonLumo/android-lumo |
March 27, 2026
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December 1, 2025
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