luca app Reviews

luca app Reviews

Published by on 2026-05-12

🏷️ About: Luca is a secure and decentralized app that encrypts personal data and records a digital guest list for events and gastronomy. It helps health authorities through digital, lean, and integrated processes. The app can only be used within Germany.


     


Is luca app Safe to Use?

We Investigate the app owner's website (Luca-app.de), verify their legitimacy, and uncover hidden scams and complaints.


Overall Customer Experience 😎


🤬 Negative experience
70.6%

😎 Positive experience
29.4%

🫥 Neutral
0.0%

~ from Justuseapp.com NLP analysis of 1,908 combined software reviews.

Is luca app Safe?
luca app appears generally safe, but use with caution.
29.4/100

  Safety Analysis »»

Is luca app Legit?
luca app appears legitimate, though exercise caution.
29.4/100



Summary of Customer Reviews (Takeaways): 💎

- Easy to use

- Convenient

- Stores vaccine QR codes



Read 22 Customer Service Reviews 😠💢

4.5 out of 5
useless garbage

lucaapp is garbage, unfortunately the only way to get to lufthansa lounges; The persistent exceeded SMS daily limit error doesn’t allow for registration

Berber received the TAN!

Many reviews are correct! lucaapp id not for US visitors of Germany! When US number is provided confirmation message is not getting sent and app sits and waits. Developer needs to despise if this is global app if just works for DE numbers. I deleted lucaapp !

Can’t even register

Keep getting told 403 and also SMS can’t be sent…can’t get in anywhere, inconvenient

Tracks even when app is closed

Tracks when app is closed

Won’t send TAN

Downloaded today, a bug won’t allow to verify my number. Tried with two phones. Please fix

German numbers only?

Doesn’t seem to support foreign phone numbers, but also appears to be required to access the Lufthansa lounges used by… international travelers.

Garbage.

Address field nonesense

Trying to type in my address and cannot even select my country. lucaapp needs a full overhaul!

Doesn’t work

The exceeded SMS daily limit error doesn’t allow for registration

won’t verify

Couldn’t finish sign-in: lucaapp gives error message instead of sending TAN. Maybe it doesn’t allow US phone number as contact? Shouldn’t be on US App Store if it doesn’t work on US phones.

Stop asking for notifications

There is literally zero reason for me to ever turn on notifications for lucaapp. STOP ASKING EVERY TIME I USE IT TO CHECK IN SOMEWHERE

Stupid stupid stupid design decisions

You’re my phone, you know exactly when I’ve left the venue, why do you send me a notification asking me to check out?

BUt dAteNsHutZ?!! Is a dumb justification, if people don’t want to give lucaapp location permission they don’t have to.

waste of App Store space

stupid app with a stupid concept for a stupid disease so NO THANKS

Family check in

There is no way to add family members. My children don’t have phones and my husband doesn’t use lucaapp . This is not useful if it’s just for one person!

Am I “enjoying” Luca? No this is stupid

I don’t enjoy Luca or care that much. I get that it’s necessary and can serve a purpose but it is not an enjoyable experience and I wish there weren’t new diseases all over the globe to worry about exposure too.

2 stars. It works but I wish we didn’t need it.

Works meh, not so thoughtful, design uninspired. EU apps…

They got the first part of sign up correct. But could have done a much better job of check in and checkout when You leave a place, like since lucaapp doesn’t check movement maybe you could edit the time you left?. Maybe next version 😹

Confusing

Interface is confusing- I can get it to work but not by following the UI. Cant upload docs due to mysterious error about my name. BUT you can’t eat in Berlin without it.

Wer negativ Resultate lies hat mehr Info

Nach einem * negative Review und lesen aller negativen Reviews hat es geklappt. Es wären 5 * geworden wenn ein kleiner Hinweis text zu ausländischen Telefon # auf dem Einstiegs Bildschirm gestanden hätte.

App

You can store your vaccine QR codes here

Easy and Used Everywhere

Easy to use and has been required almost everywhere we have gone in public.

Easy and convenient

Moving from one place to another has been easy and convenient.

Toahikazu
2021-12-25

I use Luca app in Germany without issue but after entry Italy that not opening app, my phone is iPhone. What is a problem?

Pål Arne Hansen
2021-07-12

I have downloaded Luca for android. When entering my contact information I get the message "This value is not valid" when entering my 4-digit norwegian postal code. Users with iphones doesn't seem to have the same problem.



Is luca app Safe? 🙏

luca app appears generally safe, but use with caution. JustUseApp Safety Score for luca app is 29.4/100.
This assessment is based on our NLP analysis of 1,908 user reviews. Combined with the app store average rating of 4.5/5.

Safety Analysis

76.6% of users say app is safe 👍
76.6%

14.4% of users have some concerns ⚠️
14.4%

9% of users say app is risky 🚨
9%


Is luca app Legit? 💯

luca app appears legitimate, though exercise caution. Our NLP models processed user feedback to estimate legitimacy. JustUseApp Legitimacy Score for luca app is 29.4/100 .
This conclusion is based on analysis of 1,908 user reviews.

🔏 Privacy & Data Safety

luca app collected the following data from you:

  • Data Linked to You:
    • Contact Info
  • Data Not Linked to You:
    • Identifiers
    • Diagnostics



How was your experience with luca app? Post a Review




Features

- Generation of anonymous QR codes: luca generates a secure QR code that can be used to check-in at events and venues. The venue operator cannot associate the QR code with the user.

- Contactless and anonymous data transfer: When a user enters an event or restaurant, their QR code is scanned, and the data about their stay is encrypted. The host never has access to the data, ensuring data sovereignty.

- Optional automatic check-outs: When a user leaves a venue, their check-out time can be recorded automatically.

- Check-in log view: Users can view the history of their check-ins at any time. If the public health department wants to read the data, they need the user's permission first.

- Event-specific functions: For individual events, the app can perform additional functions, such as serving as a digital entry ticket.

- Automatic deletion of data: Encrypted data is automatically deleted after a maximum of 4 weeks after visiting the event or venue.

  Contact Support
Developer:
culture4life GmbH

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