Lumo KI von Proton

iOS

Proton AG

4.0

(154 total reviews)

Productivity

View on App Store View Analytics

Negative Reviews

negative reviews found

What users complain about in Lumo KI von Proton

Users frequently report technical issues like app crashes, freezing, and sync problems, making the app unreliable. Many complain about the AI providing outdated, inaccurate, or biased information, often hallucinating sources. Privacy is praised, but the app's functionality and performance fall short of expectations, especially for paid users.

App crashes and freezesHigh
Inaccurate or outdated AI responsesHigh
Poor UI and usabilityMedium

AI summary of 108 recent 1-3 star reviews. Read the full reviews below.

Is Lumo KI von Proton legit and safe? See the trust verdict.

Is Lumo KI von Proton your app?

Get a free health report by email: trust verdict, store rating and the top complaint themes users hit.

Tools for developers Feature this app on our homepage

Fetching reviews, please wait...

Compare Lumo KI von Proton with another app

See side-by-side negative review analysis, rating breakdown, and complaint patterns.

Start a comparison →

Frequently Asked Questions

What do users complain about most in Lumo KI von Proton?

Negative reviews on Lumo KI von Proton cluster around recurring complaint patterns visible in the 1-3 star reviews above. Common themes include app crashes, missing features, billing issues, and update regressions. Browse the negative reviews on this page to see the specific issues real users in App Store are reporting.

How is Lumo KI von Proton rated on App Store?

Lumo KI von Proton has an average rating of 4.0 stars from 154 ratings on App Store. The negative review breakdown above shows the 1-3 star reviews that the headline rating averages out, grouped by complaint type so you can see what users actually struggle with.

Why does Lumo KI von Proton have negative reviews?

Even apps with strong overall ratings accumulate 1-3 star reviews when users hit specific issues. For Lumo KI von Proton, the negative reviews on this page reveal the friction points that the marketing pages and headline rating do not show. Reading the actual complaints surfaces patterns weeks before they appear in app store rating averages.

Is Lumo KI von Proton worth installing in 2026?

Lumo KI von Proton is well-rated overall with 4.0 stars. Read the negative reviews above before installing to see if the recurring complaints affect your specific use case (platform, country, payment method).

What are alternatives to Lumo KI von Proton?

Browse the Productivity category to compare Lumo KI von Proton against similar apps with their own complaint patterns. The category leaderboard ranks apps by negative review ratio so you can spot which alternatives have fewer recurring complaints.