# DUApp — user reviews

> 8 indexed App Store user reviews of DUApp by Imprensa Nacional-Casa da Moeda SA, rated 1.75/5 from 4 ratings.

- Source: https://appshunter.io/ios/app/duapp/id1474224031/reviews
- App overview in markdown: https://appshunter.io/ios/app/duapp/id1474224031.md
- Rating breakdown: 5★ 0 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 2

## Most critical reviews (8 lowest-rated)

### 1/5 — Does not work on iPhone 17

*2025-11-14*

Tried two different automobile documents (Carta Verde). Does not work for either of them. Would not scan! Waste of time, waste of tax payer resources!

**Developer response:** Caro utilizador morfeo1. A DUApp agradece o seu comentário. Esta App destina-se à leitura do código UniQode presente exclusivamente nos certificados de matrícula. Estamos a trabalhar para que a leitura do UniQode seja mais rápida. Cumprimentos, A Equipa da DUApp.

### 1/5 — Scanner doesn’t work on iPhone 15

*2024-09-23*

The camera is always blurry when in the frame. When going further away it’s crystal sharp but the app doesn’t recognize the QR. This app is useless

### 1/5 — Useless app

*2023-12-02, version 2.0*

It reads the code but doesn’t store the car registration so it’s cranky and useless , and doesn’t work with hi res camera like on iPhone - I had to use old iPhone 8 to capture the qr code

### 1/5 — It doesn’t work with iPhone 14 iOS16.6

*2023-11-26, version 2.0*

Impossible to scan, picture is blurry whilst in the frame. Last update 2 years ago, just amazing!!

### 1/5 — Doesn’t work with iPhone 14 Pro

*2023-08-11, version 2.0*

It doesn’t focus using the iPhone 14 Pro so can’t scan the code

### 1/5 — Pointless

*2023-07-13, version 2.0*

It doesn’t save your matricula card data, what’s the point of it???
If you don’t want to carry your matricula card with you all the time take a photo of the front and back and keep it on your phone? Maybe the GNR will accept that.

### 1/5 — Pointless

*2022-01-13, version 2.0*

Does not keep any information.  You need your card to scan each time so this app is useless.

### 2/5 — Saving of documents

*2021-06-25, version 2.0*

I really don’t see the sense of this app, it does scan my card ok, but I can’t safe it on it. When the app has been closed for a certain amount of time the scan is gone. My husband and I share a car and instead of having to switch the car document all the time we thought the app is a great idea. Unfortunately it’s not.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-22.*