# DUApp vs App4Agro

The clearest difference is update cadence: App4Agro at every 2 weeks against DUApp's every 6 months. App4Agro also leads on iOS requirement (13.4 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

DUApp ships an update every 6 months, App4Agro every 2 weeks. The most recent releases landed on June 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | DUApp | App4Agro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (4 ratings)](https://appshunter.io/ios/app/duapp/id1474224031/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 12 MB | 37 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Imprensa Nacional-Casa da Moeda SA](https://appshunter.io/developer/1367188525) | [Bruno Lima](https://appshunter.io/developer/1718275908) |

## 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


### App4Agro

[App page](https://appshunter.io/ios/app/app4agro/id6657992782)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DUApp free?

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

### Is App4Agro free?

App4Agro is free to download, with no in-app purchases.

### Do DUApp or App4Agro have ads?

Neither DUApp nor App4Agro shows ads.

### Which is updated more often, DUApp or App4Agro?

DUApp ships an update every 6 months, and App4Agro every 2 weeks. Most recently, DUApp was updated on June 22, 2026 and App4Agro on September 24, 2026.

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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.*