Lumo by Proton

Your Private AI Assistant

Free · In-App Purchases

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

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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

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • 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+
  • In-App Purchases
    Yes
    • Lumo Plus (12 months) 119,99 €
    • Lumo Plus (1 month) 12,99 €
  • Copyright
    • © Proton AG 2025