# EcoStruxure Power Device vs STS

The clearest difference is rating: STS at 5.0 against EcoStruxure Power Device's 3.0. STS also leads on iOS requirement (12.2 vs 16.0). EcoStruxure Power Device's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (6 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.

STS holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: EcoStruxure Power Device has 6 ratings behind it against 1, so its average is the more settled of the two.

EcoStruxure Power Device ships an update every 2 months, STS every 5 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | EcoStruxure Power Device | STS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/ecostruxure-power-device/id1130256180/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sts-soft-starter-simulation/id1409663811/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 217 MB | 67 MB |
| Requires iOS | 16.0 | **12.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Schneider Electric SA](https://appshunter.io/developer/615996152) | [Siemens AG](https://appshunter.io/developer/394503271) |

## What reviewers say

### EcoStruxure Power Device

[App page](https://appshunter.io/ios/app/ecostruxure-power-device/id1130256180)

This app allows users to operate and maintain Schneider Electric protection relays and circuit breakers. It provides real-time notifications, simplifies device management through QR code scanning, and enables wireless communication for monitoring and operation.

**Highlights:** Operate and maintain protection relays and circuit breakers, Real-time notifications on electrical installations, QR code scanning for device identification, Wireless communication via Wi-Fi and Bluetooth, Simplify device management without training, Share information with others

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

**In-app purchases:** none


### STS

[App page](https://appshunter.io/ios/app/sts-soft-starter-simulation/id1409663811)

This utility helps users select the appropriate Siemens soft starter for their specific needs. It simulates applications based on various parameters and provides detailed reports, with direct links to product data.

**Highlights:** Soft starter application simulation, Input data for environment, motor, and load, Starting parameter configuration, Suggested soft starter selection, Simulation and component reports, Direct access to Siemens Industry Mall data

**In-app purchases:** none


## Frequently asked questions

### Is EcoStruxure Power Device free?

EcoStruxure Power Device is free to download, with no in-app purchases.

### Is STS free?

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

### Which has better reviews, EcoStruxure Power Device or STS?

STS is rated higher. EcoStruxure Power Device averages 3.0 out of 5 from 6 ratings, while STS averages 5.0 from 1 ratings.

### Do EcoStruxure Power Device or STS have ads?

Neither EcoStruxure Power Device nor STS shows ads.

### Which is updated more often, EcoStruxure Power Device or STS?

EcoStruxure Power Device ships an update every 2 months, and STS every 5 months. Most recently, EcoStruxure Power Device was updated on October 23, 2026 and STS on October 25, 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.*