# Ampère Mobile vs WEG Data Viewer

The clearest difference is rating: Ampère Mobile at 5.0 against WEG Data Viewer's 3.1. Ampère Mobile also leads on review sentiment (25% vs 13%) and iOS requirement (11.0 vs 15.6). WEG Data Viewer's advantage is update cadence (monthly vs every 11 months) and ratings volume (27 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.

Ampère Mobile holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: WEG Data Viewer has 27 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of Ampère Mobile's written reviews are positive against 13% of WEG Data Viewer's.

Ampère Mobile ships an update every 11 months, WEG Data Viewer monthly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Ampère Mobile | WEG Data Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ampere-mobile/id672293934/reviews)** | [3.1 (27 ratings)](https://appshunter.io/ios/app/weg-data-viewer/id1576866018/reviews) |
| Number of ratings | 1 | **27** |
| Positive reviews | **25.0% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free | Free |
| Size | 41 MB | 30 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [Electro Graphics Srl](https://appshunter.io/developer/542354467) | [WEG Equipamentos Eletricos S/A](https://appshunter.io/developer/575847223) |

## What reviewers say

### Ampère Mobile

[App page](https://appshunter.io/ios/app/ampere-mobile/id672293934)

This app provides essential tools for electricians and designers to calculate and verify electrical plant dimensions. It allows for immediate on-site evaluation and control of design data, including cable sizing, voltage drop, and temperature.

**Highlights:** Project calculation for current, cable sizing, voltage drop, and temperature, Support for low and medium voltage installations, Multiple international installation standards, Open, view, and edit electrical plant design files, On-site verification and photo storage, Real-time comment editing and sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### WEG Data Viewer

[App page](https://appshunter.io/ios/app/weg-data-viewer/id1576866018)

Access technical documents for WEG products, including data sheets, drawings, and manuals for electric motors, automation equipment, and ink. Easily search for specific information within a wide range of technical documentation.

**Highlights:** Search technical documents, Access data sheets, View drawings, Find manuals, Browse bulletins, Technical documentation for WEG products

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

**In-app purchases:** none


## Frequently asked questions

### Is Ampère Mobile free?

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

### Is WEG Data Viewer free?

WEG Data Viewer is free to download, with no in-app purchases.

### Which has better reviews, Ampère Mobile or WEG Data Viewer?

Ampère Mobile is rated higher. Ampère Mobile averages 5.0 out of 5 from 1 ratings, while WEG Data Viewer averages 3.1 from 27 ratings.

### Do Ampère Mobile or WEG Data Viewer have ads?

Neither Ampère Mobile nor WEG Data Viewer shows ads.

### Which is updated more often, Ampère Mobile or WEG Data Viewer?

Ampère Mobile ships an update every 11 months, and WEG Data Viewer monthly. Most recently, Ampère Mobile was updated on October 9, 2026 and WEG Data Viewer on October 7, 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.*