# Rotating Equipment Selector vs BossWell

The clearest difference is update cadence: BossWell at weekly against Rotating Equipment Selector's every 19 months. 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.

Rotating Equipment Selector ships an update every 19 months, BossWell weekly. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Rotating Equipment Selector | BossWell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/rotating-equipment-selector/id1539380211/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Weekly** |
| Monetization | Free | — |
| Size | 37 MB | 21 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Siemens Energy](https://appshunter.io/developer/1539380213) | [QAMAR AL DIN GENERAL TRADING LLC](https://appshunter.io/developer/1581269591) |

## What reviewers say

### 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, Vision Pro support

**In-app purchases:** none


### BossWell

[App page](https://appshunter.io/ios/app/bosswell/id1570199532)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rotating Equipment Selector free?

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

### Is BossWell free?

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

### Do Rotating Equipment Selector or BossWell have ads?

Neither Rotating Equipment Selector nor BossWell shows ads.

### Which is updated more often, Rotating Equipment Selector or BossWell?

Rotating Equipment Selector ships an update every 19 months, and BossWell weekly. Most recently, Rotating Equipment Selector was updated on November 5, 2026 and BossWell on November 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.*