Lumo AI by Proton

Lumo AI by Proton

Proton AG · 3.7 ★ · FREE

Screenshots

Description

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

Developer

Proton AG

Developer ID: 979659484

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What's New

Version 1.4.1 · 8 May 2026

Purr-fect Headphone Handoff - Plugging in or unplugging headphones mid-conversation no longer causes a cat-astrophic crash. Lumo now handles audio switches as gracefully as a cat landing on its feet. iOS 17 Gets Nine Lives Back - Fixed a crash that cut off message sending on iOS 17 devices. Lumo now delivers your words without burning through any of those precious nine lives. Auto-cat-rect Is Back - Autocorrection and spell checking are working again in the message composer. Your typos won't slip through the cat door anymore! Sorry for all the puns :)

Ratings & Reviews

App Store

3.7

3 ratings

N/A downloads

Recent Reviews

Emmanuel Simond

Google Play

app reset itself when switching between windows. might well be an issue related to battery saving policy of the phone, coz it always happens when battery saver is on. guess the app get killed by the android os when we switch between tasks/app update : tried without battery saver, same issue ;(

13 May 2026

Aidan De lange

Google Play

thanks lumo is great I just want to know will lumo ever support the ai to anize zip filed

13 May 2026

Kevin Philp

Google Play

Excellent at summarising documents and searching and referencing material.

11 May 2026

Richard Sharp

Google Play

Too basic. You need at least voice chat to make it interesting.

10 May 2026

Sketty

Google Play

horrific app. won't even translate "offensive" words used for colloquial language learning. Completely useless and just another woke coded LLM.

10 May 2026

Sourov Ahmed tanvir

App Store

Good Ai app

Lumo – A Fresh Take on Secure, Intelligent Assistance ⭐️⭐️⭐️⭐️⭐️ (5/5)

30 Jan 2026

kyroschen

App Store

Slow to start up

It takes too long to start up.

26 Aug 2025

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