Lumo by Proton
Your Private AI Assistant
Free · In-App Purchases
Also Included In
No tracking. No profiling. No side-eye. A new breed of AI assistant, Lumo gives you the help you need, but keeps every chat confidential. From the privacy pros at Proton.
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.
For more information visit our website: https://lumo.proton.me/about
Terms of service: https://lumo.proton.me/legal/terms
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Our open-source code base: https://github.com/ProtonLumo/ios-lumo
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
Fix for tinted version in the widget.
The developer, Proton AG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Proton AG
- Size
- 60.4 MB
- Category
- Productivity
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - iPad
Requires iPadOS 16.6 or later.
- Languages
English and 10 more
- English, Czech, Dutch, French, German, Italian, Polish, Portuguese, Russian, Spanish, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lumo Plus (12 months) 119,99 €
- Lumo Plus (1 month) 12,99 €
- Copyright
- © Proton AG 2025