# Metal Work RegUp vs STEP Viewer

The clearest difference is update cadence: STEP Viewer at every 5 days against Metal Work RegUp's every 6 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.

Metal Work RegUp ships an update every 6 months, STEP Viewer every 5 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Metal Work RegUp | STEP Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/step-viewer/id6756539299/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 33 MB | 61 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Metal Work S.p.a.](https://appshunter.io/developer/860705650) | [Smart Cube Labs Co., Ltd.](https://appshunter.io/developer/1456342688) |

## What reviewers say

### Metal Work RegUp

[App page](https://appshunter.io/ios/app/metal-work-regup/id6449496213)

**Features:** macOS Compatibility

**In-app purchases:** none


### STEP Viewer

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

View and interact with 3D CAD files directly on your mobile device. Measure dimensions, rotate, zoom, and save models in a common format without needing desktop software.

**Highlights:** Open STEP files from file manager, 3D model measurement tools, Six fixed views, Pinch to zoom, pan, and rotate, Save as GLB, Progress indicator for large files, Multilingual support

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

**In-app purchases:** none


## Frequently asked questions

### Is Metal Work RegUp free?

Metal Work RegUp 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 Metal Work RegUp or STEP Viewer have ads?

Neither Metal Work RegUp nor STEP Viewer shows ads.

### Which is updated more often, Metal Work RegUp or STEP Viewer?

Metal Work RegUp ships an update every 6 months, and STEP Viewer every 5 days. Most recently, Metal Work RegUp was updated on October 27, 2026 and STEP Viewer on October 30, 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.*