# Ampère Mobile vs SIADMI4U

The clearest difference is update cadence: SIADMI4U at every 5 months against Ampère Mobile's every 11 months. Ampère Mobile's advantage is iOS requirement (11.0 vs 16.2). 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.

Ampère Mobile ships an update every 11 months, SIADMI4U every 5 months. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Ampère Mobile | SIADMI4U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ampere-mobile/id672293934/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 41 MB | 46 MB |
| Requires iOS | **11.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Electro Graphics Srl](https://appshunter.io/developer/542354467) | [Davide Donadoni](https://appshunter.io/developer/1530151983) |

## 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


### SIADMI4U

[App page](https://appshunter.io/ios/app/siadmi4u/id1530151981)

**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 SIADMI4U free?

SIADMI4U is free to download, with no in-app purchases.

### Do Ampère Mobile or SIADMI4U have ads?

Neither Ampère Mobile nor SIADMI4U shows ads.

### Which is updated more often, Ampère Mobile or SIADMI4U?

Ampère Mobile ships an update every 11 months, and SIADMI4U every 5 months. Most recently, Ampère Mobile was updated on October 9, 2026 and SIADMI4U on October 11, 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.*