# Fermax WayFi vs DUApp

The clearest difference is rating: Fermax WayFi at 2.5 against DUApp's 1.8. Fermax WayFi also leads on review sentiment (8% vs 0%) and iOS requirement (12.2 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

Fermax WayFi holds the better App Store score, 2.5 against 1.8. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 8% of Fermax WayFi's written reviews are positive against 0% of DUApp's.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on June 8, 2026 and June 22, 2026 respectively.

## The numbers

| Metric | Fermax WayFi | DUApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/fermax-wayfi/id1372420557/reviews)** | [1.8 (4 ratings)](https://appshunter.io/ios/app/duapp/id1474224031/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | **8.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Free | Free |
| Size | 45 MB | 12 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FERMAX ELECTRONICA, S.A.](https://appshunter.io/developer/891332024) | [Imprensa Nacional-Casa da Moeda SA](https://appshunter.io/developer/1367188525) |

## What reviewers say

### Fermax WayFi

[App page](https://appshunter.io/ios/app/fermax-wayfi/id1372420557)

Control your home's door entry system remotely from your mobile device. View visitors, communicate with them, and unlock your door from anywhere with a 3G/4G or Wi-Fi connection. Never miss a visitor again.

**Highlights:** Remote door control, Visitor video viewing, Two-way audio communication, Door unlocking, Picture and video recording, Call diversion to mobile

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Fermax WayFi free?

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

### Is DUApp free?

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

### Which has better reviews, Fermax WayFi or DUApp?

Fermax WayFi is rated higher. Fermax WayFi averages 2.5 out of 5 from 2 ratings, while DUApp averages 1.8 from 4 ratings.

### Do Fermax WayFi or DUApp have ads?

Neither Fermax WayFi nor DUApp shows ads.

### Which is updated more often, Fermax WayFi or DUApp?

Fermax WayFi ships an update every 6 months, and DUApp every 6 months. Most recently, Fermax WayFi was updated on June 8, 2026 and DUApp on June 22, 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.*