# DUApp vs BUPi

The clearest difference is rating: BUPi at 5.0 against DUApp's 1.8. BUPi also leads on update cadence (every 3 months vs every 6 months). DUApp's advantage is ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

BUPi holds the better App Store score, 5.0 against 1.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

DUApp ships an update every 6 months, BUPi every 3 months. The most recent releases landed on June 22, 2026 and August 2, 2026 respectively.

## The numbers

| Metric | DUApp | BUPi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (4 ratings)](https://appshunter.io/ios/app/duapp/id1474224031/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bupi/id1624349613/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 12 MB | 63 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imprensa Nacional-Casa da Moeda SA](https://appshunter.io/developer/1367188525) | [eBUPi Estrutura de Missao para a Expansao do Sistema de Informacao Cadastral Simplificado](https://appshunter.io/developer/1624349615) |

## 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


### BUPi

[App page](https://appshunter.io/ios/app/bupi/id1624349613)

Quickly and accurately identify the boundaries of your rural and mixed properties. Calculate land areas, manage all your properties efficiently, and easily share information via email.

**Highlights:** Identify property boundaries, Calculate land areas, Manage multiple properties, Share property information via email, Free to use

**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 BUPi free?

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

### Which has better reviews, DUApp or BUPi?

BUPi is rated higher. DUApp averages 1.8 out of 5 from 4 ratings, while BUPi averages 5.0 from 1 ratings.

### Do DUApp or BUPi have ads?

Neither DUApp nor BUPi shows ads.

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

DUApp ships an update every 6 months, and BUPi every 3 months. Most recently, DUApp was updated on June 22, 2026 and BUPi on August 2, 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.*