# DUApp vs P4M

DUApp and P4M are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | DUApp | P4M |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (5 ratings)](https://appshunter.io/ios/app/duapp/id1474224031/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | Free | — |
| Size | 12 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imprensa Nacional-Casa da Moeda S.A.](https://appshunter.io/developer/1367188525) | [Dynamik](https://appshunter.io/developer/1396136772) |

## What reviewers say

### DUApp

[App page](https://appshunter.io/ios/app/duapp/id1474224031)

This app reads information from Portugal's certified vehicle registration document using UniQode®. It provides intuitive and friendly access to the document's complete details. Note that it does not replace the physical document.

**Highlights:** Read UniQode® information, Access vehicle document details, Intuitive interface, Friendly user experience, Digital access to document data

**Features:** macOS Compatibility

**In-app purchases:** none


### P4M

[App page](https://appshunter.io/ios/app/p4m/id6806306000)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DUApp free?

DUApp is free to download, with no in-app purchases.

### Is P4M free?

P4M is free to download, with no in-app purchases.

### Do DUApp or P4M have ads?

Neither DUApp nor P4M shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*