# DUApp

> Reads Portuguese vehicle registration document information via UniQode®. (iPhone/iPad app by Imprensa Nacional-Casa da Moeda SA.)

- Source: https://appshunter.io/ios/app/duapp/id1474224031 (this page in markdown: same URL + `.md`)
- Developer: [Imprensa Nacional-Casa da Moeda SA](https://appshunter.io/developer/1367188525)
- Category: Utilities, Reference
- Price: Free
- Rating: 1.75/5 from 4 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 12 MB
- Languages: English, Portuguese
- Released: 2019-11-15
- Data updated: 2026-06-22
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/duapp/id1474224031/reviews.md

## What is DUApp?

A duapp permite fazer a leitura da informação presente no UniQode® do documento certificado de matrícula, Documento Único Automóvel, de Portugal. Permite o acesso na app à informação completa do documento de forma intuitiva e amigável. 
Atenção: a DUApp não substitui o documento físico.

## Key features

- Read UniQode® information
- Access vehicle document details
- Intuitive interface
- Friendly user experience
- Digital access to document data

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/duapp/id1474224031/reviews.md

### 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.

## Frequently asked questions about DUApp

### What is DUApp used for?

DUApp allows you to read the information present in the UniQode® of Portugal's certified vehicle registration document. It provides intuitive and friendly access to the complete details of your document.

### Does DUApp replace my physical vehicle registration document?

No, DUApp explicitly states that it does not replace the physical document. It is intended for digital access to the information contained within the UniQode®.

### What devices does DUApp support?

DUApp is available for iPhone and iPod devices. It is designed to run on Apple's mobile operating systems.

### How often is DUApp updated?

The latest version of DUApp is 3.0.1, and it was last updated on February 2, 2024. This indicates a relatively recent update cycle for the application.

### What is the age rating for DUApp?

DUApp has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger individuals, for its intended utility purpose.

### Is DUApp available for Android devices?

Based on the provided data, DUApp is only supported on iPhone and iPod devices. There is no mention of Android compatibility.

### What is the developer of DUApp?

DUApp is developed by Imprensa Nacional-Casa da Moeda SA. This is the official Portuguese National Press and House of the Coin.

### Does DUApp have ads?

No, DUApp does not contain advertisements. The 'hasAds' flag is set to false, indicating an ad-free user experience.

## Version history (last 5 releases)

### 3.0.2 — 2026-06-20

Correção de bugs.

### 3.0.1 — 2024-02-02

- Correcção da Leitura do QR Code do DUA Triptico/Papel​
- Melhorias de usabilidade​
- Melhorias no algoritmo de leitura do UniQode​

### 3.0 — 2024-01-22

- Correcção da Leitura do QR Code do DUA Triptico/Papel​
- Melhorias de usabilidade​
- Melhorias no algoritmo de leitura do UniQode​

### 2.0 — 2021-01-06

- Leitura do QR Code do DUA Triptico/Papel​
- Melhorias de usabilidade​
- Melhorias no algoritmo de leitura do UniQode​

### 1.2 — 2020-01-30

- Melhorias na leitura do UniQode
- Manutenção corretiva

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All apps by Imprensa Nacional-Casa da Moeda SA: https://appshunter.io/developer/1367188525

## Related topics

[duaapp](https://appshunter.io/ios/topics/duaapp) · [uniqode](https://appshunter.io/ios/topics/uniqode)

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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.*