Lumo AI by Proton Downloads & RevenueLumo AI by Proton · App Store & Google Play
Lumo AI by Proton gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Lumo AI by Proton by Proton AG is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
⭐iOSPassed 100 ratings📈iOSEntered the top 100📈iOSCharting in a new country⭐iOSPassed 100 ratings📦AndroidUpdated to version 2.1.5-gms📦iOSUpdated to version 2.1.2📈AndroidCharting in a new country📈AndroidCharting in a new country📦iOSUpdated to version 2.1.1📦AndroidUpdated to version 2.1.4-gms🆕AndroidFirst spotted by AppInsider🆕iOSFirst spotted by AppInsider🆕iOSReleased on the App Store🆕AndroidReleased on Google Play
Full timeline · 34 events
- 📈Lumo AI by Proton entered the top 100iOSTop Grossing · Productivity · PH
- 📈Lumo AI by Proton charting in a new countryiOSPhilippines
- 📈Lumo AI by Proton entered the top 100iOSTop Grossing · Productivity · PL
- 📈Lumo AI by Proton charting in a new countryiOSPoland
- 📦Lumo AI by Proton updated to version 2.1.5-gmsAndroidLumo 2.1.5 is here, and we’ve chased down a few pesky bugs! We’ve fixed issues with signing in, payments, and file downloads, and reduced memory usage. Less hiss, more purr. 🐾
- 📦Lumo AI by Proton updated to version 2.1.2iOSFixed Saving From Chats - Files now land in Photos or Files natively on iOS instead of getting stuck in a web view.
- 📈Lumo AI by Proton charting in a new countryAndroidUnited Arab Emirates
- 📈Lumo AI by Proton charting in a new countryAndroidVietnam
- 📈Lumo AI by Proton entered the top 100iOSTop Grossing · Productivity · TW
- 📈Lumo AI by Proton charting in a new countryiOSTaiwan
- 📦Lumo AI by Proton updated to version 2.1.1iOSThe account features we announced in our last update were held back while we fixed an issue. That fix is in this release, so they are now rolling out to everyone.
Lands on Its Feet - Lumo now lands on its feet when you sign in, with a fix for a crash some of you hit when logging into your account.
Purr-fectly Smooth Sign-In - Signing in and creating an account are now quicker and smoother, with fewer steps between you and Lumo.
Switch Accounts in a Flash - Hop between your accounts in a single tap.
Account Settings Find Their Basket - Your account settings now open instantly and feel right at home in the app.
Security Key to the Cat Flap - Sign in with a hardware security key for extra protection that stays paw-sitively untouchable.
Back From the Void - Returning to Lumo after a long time in the background now restores your conversation instead of a blank screen.… more - 📈Lumo AI by Proton charting in a new countryAndroidNetherlands
- 📈Lumo AI by Proton entered the top 100 in 2 chartsiOSTop Grossing · Productivity · DE · Top Grossing · Productivity · MY
- 📈Lumo AI by Proton charting in a new countryiOSMalaysia
- 📈Lumo AI by Proton charting in a new countryAndroidSweden
- 📈Lumo AI by Proton entered the top 100iOSTop Grossing · Productivity · RU
- 📈Lumo AI by Proton charting in a new countryiOSRussia
- 📦Lumo AI by Proton updated to version 2.1.4-gmsAndroidLumo now lands on its feet when you sign in, with a fix for a crash some of you hit when logging into your account. 😺
- 📈Lumo AI by Proton entered the top 100AndroidTop Grossing · Productivity · DE
- 📈Lumo AI by Proton entered the top 100iOSTop Grossing · Productivity · ES
- 📈Lumo AI by Proton charting in a new countryAndroidAustralia
- 📈Lumo AI by Proton charting in a new countryAndroidGermany
- 🆕Lumo AI by Proton first spotted by AppInsiderAndroidUnited States
- 📈Lumo AI by Proton charting in a new country in 2 chartsiOSAustralia · Spain
- 📈Lumo AI by Proton entered the top 100iOSTop Grossing · Productivity · SE
- 🆕Lumo AI by Proton first spotted by AppInsideriOS#94 in Top Free · Productivity · Germany
- 📦Lumo AI by Proton version 2.1.3-gmsAndroid- Fixed the system theme: Lumo now correctly follows your device's light or dark mode, including at startup.
- Fixed account switching: the app now opens on the account you have selected, instead of sometimes loading the last-used one.
- Improved sign-in: after entering a second-factor code you now go to the correct password screen, and "Reset backup password" can be reached from the backup password and pending-approval screens.… more - 📦Lumo AI by Proton version 2.1.0iOSNo release notes
- 🆕Lumo AI by Proton released on the App StoreiOS
- 🆕Lumo AI by Proton released on Google PlayAndroid
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.9 ★
3.4k ratings, both stores
Measured
Best rank now
#63
Android · 
Productivity Grossing
Productivity GrossingMeasured
New ratings a week
58
▲ +33% vs the 2 weeks before (Google Play)
Measured
App Store
App details
App ID
6746714949
Publisher
Proton AG
Publisher country
Switzerland
On the store since
Jul 2025
1 year on the store
Minimum OS
iOS 17.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
11
CS NL EN FR DE IT PL PT RU ES TR
Size
108 MB
Google Play
App details
App ID
me.proton.android.lumo
Publisher
Proton AG
Publisher country
Switzerland
Content rating
Everyone
Lumo AI by Proton downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | 50+ | 50k+ |
| Google Play | 1k+ | 100k+ Measured |
| Total | 1k+ Confidence | 100k+ Confidence |
How this is calculated
App Store: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Where Lumo AI by Proton's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: Subscription-led
How Lumo AI by Proton makes money: subscriptions, one-off purchases and ads.
SubscriptionsIn-app purchases
Subscriptions
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | Lumo Plus (1 month) subscription | |
| 2 | Lumo Plus (12 months) subscription |
Where it ranks now
Both stores, across every country we track.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | #65 Productivity Grossing | 3 of 30 countries | – | – |
| Google Play | #63 Productivity Grossing | 3 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Review momentum
ⓘ How we measure thisApp Store
New ratings a week
6
▲ +36% vs the 2 weeks before
Lifetime rating
4.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
72/100
faster than 77% of Productivity apps
Growing fastest in Germany ▲ +71%
New ratings by country (2)
| Country | New ratings a week | Share | Last 2 weeks vs the 2 before |
|---|---|---|---|
| Germany | 4.2 | 78% | ▲ +71% |
 Netherlands | 1.2 | 22% | – |
App Store ratings in the countries we track, 4-week average.
Google Play
New ratings a week
52
▲ +33% vs the 2 weeks before
Written reviews a week
4
Google Play
Recent ratings
5.0★
vs 3.8★ lifetime
Review momentum
54/100
faster than 36% of Productivity apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.1 ★ | 18 |
| Google Play | 3.9 ★ | 3.4k 335 written reviews |
| Both stores | 3.9 ★ weighted by ratings | 3.4k |
About Lumo AI by Proton
Lumo is a zero-access encrypted AI assistant that keeps every conversation private. Your data is never logged, shared, or used to train models. Your chats are yours, and yours alone.
Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass.
THOUGHTFUL HELP FOR ANY TASK
Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning.
FAST, POWERFUL WEB SEARCH
Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more.
CREATE AND REFINE IMAGES AND FILES
Work with images and files just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files.
AI THAT EVOLVES OVER TIME
Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want.
STAY PRODUCTIVE AND ORGANIZED
Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day.
GHOST MODE
For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind.
PRIVACY YOU CAN VERIFY
Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source.
Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today.
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
Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass.
THOUGHTFUL HELP FOR ANY TASK
Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning.
FAST, POWERFUL WEB SEARCH
Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more.
CREATE AND REFINE IMAGES AND FILES
Work with images and files just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files.
AI THAT EVOLVES OVER TIME
Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want.
STAY PRODUCTIVE AND ORGANIZED
Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day.
GHOST MODE
For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind.
PRIVACY YOU CAN VERIFY
Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source.
Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today.
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
Lumo AI by Proton App Store
Lumo AI by Proton gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Lumo AI by Proton is #65 in Productivity Grossing in Vietnam and charting in 3 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperProton AG
CategoryProductivity
PriceFree
Released
Rating★ 4.1 (18)
Version2.1.2
Age rating4+
First seen by us 24 Sep 2026
24 Sep 2026Installs (est.)50k+ worldwide
Rating
4.1 ★
18 ratings
Measured
Best rank now
#65
Productivity GrossingMeasured
New ratings a week
6
▲ +36% vs the 2 weeks before
Measured
Lumo AI by Proton on the App Store
App details
App ID
6746714949
Publisher
Proton AG
Publisher country
Switzerland
On the store since
Jul 2025
1 year on the store
Minimum OS
iOS 17.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
11
CS NL EN FR DE IT PL PT RU ES TR
Size
108 MB
Lumo AI by Proton downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Lumo AI by Proton's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in Lumo AI by Proton before Apple and Google take their fee.
How this is calculated
Not in an overall Top Grossing chart, only in category charts: each category position is converted to the overall position it corresponds to, then priced on the same rank-to-revenue curve, inside the part of each market the charted apps leave over.
Business model: Subscription-led
How Lumo AI by Proton makes money: subscriptions, one-off purchases and ads.
SubscriptionsIn-app purchases
Subscriptions
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | Lumo Plus (1 month) subscription | |
| 2 | Lumo Plus (12 months) subscription |
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Vietnam | ProductivityGrossing | #65 |
 Sweden | ProductivityGrossing | #96 |
| Netherlands | ProductivityFree | #196 |
Apps near Lumo AI by Proton on the chart
Productivity Grossing, around #65.
Ratings
App Store, worldwide.
Rating
4.1 ★
18 ratings
Measured
Ratings
18
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
6
▲ +36% vs the 2 weeks before
Lifetime rating
4.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
72/100
faster than 77% of Productivity apps
Growing fastest in Germany ▲ +71%
New ratings by country (2)
| Country | New ratings a week | Share | Last 2 weeks vs the 2 before |
|---|---|---|---|
| Germany | 4.2 | 78% | ▲ +71% |
| Netherlands | 1.2 | 22% | – |
App Store ratings in the countries we track, 4-week average.
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Lumo AI by Proton
Lumo is a zero-access encrypted AI assistant that keeps every conversation private. Your data is never logged, shared, or used to train models. Your chats are yours, and yours alone.
Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass.
THOUGHTFUL HELP FOR ANY TASK
Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning.
FAST, POWERFUL WEB SEARCH
Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more.
CREATE AND REFINE IMAGES AND FILES
Work with images and files just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files.
AI THAT EVOLVES OVER TIME
Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want.
STAY PRODUCTIVE AND ORGANIZED
Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day.
GHOST MODE
For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind.
PRIVACY YOU CAN VERIFY
Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source.
Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today.
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
Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass.
THOUGHTFUL HELP FOR ANY TASK
Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning.
FAST, POWERFUL WEB SEARCH
Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more.
CREATE AND REFINE IMAGES AND FILES
Work with images and files just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files.
AI THAT EVOLVES OVER TIME
Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want.
STAY PRODUCTIVE AND ORGANIZED
Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day.
GHOST MODE
For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind.
PRIVACY YOU CAN VERIFY
Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source.
Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today.
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
Latest updates
2.1.2
Fixed Saving From Chats - Files now land in Photos or Files natively on iOS instead of getting stuck in a web view.
2.1.1
The account features we announced in our last update were held back while we fixed an issue. That fix is in this release, so they are now rolling out to everyone.
Lands on Its Feet - Lumo now lands on its feet when you sign in, with a fix for a crash some of you hit when logging into your account.
Purr-fectly Smooth Sign-In - Signing in and creating an account are now quicker and smoother, with fewer steps between you and Lumo.
Switch Accounts in a Flash - Hop between your accounts in a single tap.
Account Settings Find Their Basket - Your account settings now open instantly and feel right at home in the app.
Security Key to the Cat Flap - Sign in with a hardware security key for extra protection that stays paw-sitively untouchable.
Back From the Void - Returning to Lumo after a long time in the background now restores your conversation instead of a blank screen.
2.1.0
More from Proton AG
Lumo by Proton Android
Lumo by Proton gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Lumo by Proton is #63 in Productivity Grossing on Google Play in Germany and charting in 3 of 23 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperProton AG
CategoryProductivity
PriceFree
Released
Installs100k+
Rating★ 3.9 (3.4k)
Updated
Content ratingEveryone
Rating
3.9 ★
3.4k ratings
Measured
Best rank now
#63
Productivity GrossingMeasured
New ratings a week
52
▲ +33% vs the 2 weeks before
Measured
Lumo by Proton on Google Play
App details
App ID
me.proton.android.lumo
Publisher
Proton AG
Publisher country
Switzerland
Content rating
Everyone
Lumo by Proton downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where Lumo by Proton's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in Lumo by Proton before Apple and Google take their fee.
How this is calculated
Not in an overall Top Grossing chart, only in category charts: each category position is converted to the overall position it corresponds to, then priced on the same rank-to-revenue curve, inside the part of each market the charted apps leave over.
Business model: Subscription-led
How Lumo by Proton makes money: subscriptions, one-off purchases and ads.
SubscriptionsIn-app purchases
Subscriptions
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | Lumo Plus (1 month) subscription | |
| 2 | Lumo Plus (12 months) subscription |
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Germany | ProductivityGrossing | #63 |
| Netherlands | ProductivityFree | #198 |
| Sweden | ProductivityFree | #189 |
Apps near Lumo by Proton on the chart
Productivity Grossing, around #63.
Ratings
Google Play, worldwide.
Rating
3.9 ★
3.4k ratings
Measured
Ratings
3.4k
Measured
Written reviews
335
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
52
▲ +33% vs the 2 weeks before
Written reviews a week
4
Google Play
Recent ratings
5.0★
vs 3.8★ lifetime
Review momentum
54/100
faster than 36% of Productivity apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Lumo by Proton
"Lumo is a zero-access encrypted AI assistant that keeps every conversation private. Your data is never logged, shared, or used to train models. Your chats are yours, and yours alone.
Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass.
THOUGHTFUL HELP FOR ANY TASK
Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning.
FAST, POWERFUL WEB SEARCH
Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more.
CREATE AND REFINE IMAGES AND FILES
Work with images and documents just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files.
AI THAT EVOLVES OVER TIME
Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want.
STAY PRODUCTIVE AND ORGANIZED
Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day.
GHOST MODE
For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind.
PRIVACY YOU CAN VERIFY
Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source.
Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today.
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"
Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass.
THOUGHTFUL HELP FOR ANY TASK
Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning.
FAST, POWERFUL WEB SEARCH
Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more.
CREATE AND REFINE IMAGES AND FILES
Work with images and documents just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files.
AI THAT EVOLVES OVER TIME
Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want.
STAY PRODUCTIVE AND ORGANIZED
Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day.
GHOST MODE
For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind.
PRIVACY YOU CAN VERIFY
Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source.
Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today.
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"
What's new in 2.1.5-gms
Lumo 2.1.5 is here, and we’ve chased down a few pesky bugs! We’ve fixed issues with signing in, payments, and file downloads, and reduced memory usage. Less hiss, more purr. 🐾