# CleanFactory vs STEP Viewer

The clearest difference is update cadence: STEP Viewer at every 5 days against CleanFactory's every 10 months. STEP Viewer also leads on iOS requirement (13.0 vs 26.0). 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.

CleanFactory ships an update every 10 months, STEP Viewer every 5 days. The most recent releases landed on September 29, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | CleanFactory | STEP Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/cleanfactory/id1147995405/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 880 MB | 61 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maschinenfabrik Heute GmbH & Co. KG](https://appshunter.io/developer/1147995404) | [Smart Cube Labs Co., Ltd.](https://appshunter.io/developer/1456342688) |

## What reviewers say

### CleanFactory

[App page](https://appshunter.io/ios/app/cleanfactory/id1147995405)

This app visually demonstrates how to control dirt entry in industrial settings using a specific cleaning system. It offers interactive tours of various industries, highlighting contamination points and recommending suitable product series for dry and wet cleaning.

**Highlights:** Interactive industrial tours, Dirt introduction control, Real-world application scenarios, Visual representations, Product recommendations, Technical information downloads

**In-app purchases:** none


### STEP Viewer

[App page](https://appshunter.io/ios/app/step-viewer/id6756539299)

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

**In-app purchases:** none


## Frequently asked questions

### Is CleanFactory free?

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

### Is STEP Viewer free?

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

### Do CleanFactory or STEP Viewer have ads?

Neither CleanFactory nor STEP Viewer shows ads.

### Which is updated more often, CleanFactory or STEP Viewer?

CleanFactory ships an update every 10 months, and STEP Viewer every 5 days. Most recently, CleanFactory was updated on September 29, 2026 and STEP Viewer on October 4, 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.*