# DUApp vs EDP Solar

The clearest difference is rating: EDP Solar at 3.5 against DUApp's 1.8. EDP Solar also leads on update cadence (every 5 weeks vs every 6 months) and review sentiment (8% vs 0%). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

EDP Solar holds the better App Store score, 3.5 against 1.8. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 0% of DUApp's written reviews are positive against 8% of EDP Solar's.

DUApp ships an update every 6 months, EDP Solar every 5 weeks. The most recent releases landed on June 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | DUApp | EDP Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (4 ratings)](https://appshunter.io/ios/app/duapp/id1474224031/reviews) | **[3.5 (6 ratings)](https://appshunter.io/ios/app/edp-solar/id1591215076/reviews)** |
| Number of ratings | 4 | **6** |
| Positive reviews | 0.0% of reviews | **8.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 12 MB | 128 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Imprensa Nacional-Casa da Moeda SA](https://appshunter.io/developer/1367188525) | [edp](https://appshunter.io/developer/468456355) |

## 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


### EDP Solar

[App page](https://appshunter.io/ios/app/edp-solar/id1591215076)

Monitor and optimize your home energy solutions in real-time. Track energy consumption, production, and battery storage. Control smart home devices and receive alerts for system failures.

**Highlights:** Real-time energy consumption and production monitoring, Solar system and battery storage data tracking, Smart home device control, Notifications for system failures and irregular consumption, Energy saving insights

**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 EDP Solar free?

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

### Which has better reviews, DUApp or EDP Solar?

EDP Solar is rated higher. DUApp averages 1.8 out of 5 from 4 ratings, while EDP Solar averages 3.5 from 6 ratings.

### Do DUApp or EDP Solar have ads?

Neither DUApp nor EDP Solar shows ads.

### Which is updated more often, DUApp or EDP Solar?

DUApp ships an update every 6 months, and EDP Solar every 5 weeks. Most recently, DUApp was updated on June 22, 2026 and EDP Solar on September 18, 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.*