# Electrical Engineering Mag vs Rotating Equipment Selector

The clearest difference is update cadence: Electrical Engineering Mag at every 9 months against Rotating Equipment Selector's every 19 months. Rotating Equipment Selector's advantage is iOS requirement (13.0 vs 16.0). 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.

Electrical Engineering Mag ships an update every 9 months, Rotating Equipment Selector every 19 months. The most recent releases landed on August 25, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Electrical Engineering Mag | Rotating Equipment Selector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/rotating-equipment-selector/id1539380211/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 19 months |
| Monetization | Free | Free |
| Size | 29 MB | 37 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Datateam Business Media Ltd](https://appshunter.io/developer/531755760) | [Siemens Energy AG](https://appshunter.io/developer/1539380213) |

## What reviewers say

### Electrical Engineering Mag

[App page](https://appshunter.io/ios/app/electrical-engineering-mag/id886126039)

This app provides access to a leading journal in the electrical engineering field. It features news, articles, and product information covering the latest developments in electrical systems design, installation, and maintenance.

**Highlights:** Latest industry news, Feature articles, Application stories, New product information, Electrical systems coverage

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

**In-app purchases:** none


### Rotating Equipment Selector

[App page](https://appshunter.io/ios/app/rotating-equipment-selector/id1539380211)

This application assists in selecting centrifugal and reciprocating compressors, gas turbines, and motors. It provides a streamlined process for choosing the right equipment from a leading manufacturer.

**Highlights:** Compressor selection, Gas turbine selection, Motor selection, Equipment specification, Product catalog

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Engineering Mag free?

Electrical Engineering Mag is free to download, with no in-app purchases.

### Is Rotating Equipment Selector free?

Rotating Equipment Selector is free to download, with no in-app purchases.

### Do Electrical Engineering Mag or Rotating Equipment Selector have ads?

Neither Electrical Engineering Mag nor Rotating Equipment Selector shows ads.

### Which is updated more often, Electrical Engineering Mag or Rotating Equipment Selector?

Electrical Engineering Mag ships an update every 9 months, and Rotating Equipment Selector every 19 months. Most recently, Electrical Engineering Mag was updated on August 25, 2026 and Rotating Equipment Selector on June 1, 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.*