# Scanner Assistant vs STEP File Viewer

The clearest difference is in-app purchases: Scanner Assistant at none against STEP File Viewer's 12. STEP File Viewer's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. STEP File Viewer sells 12 in-app purchases, starting at $1.99 per 7 days. Scanner Assistant asks for nothing beyond the download.

Scanner Assistant ships an update every 5 weeks, STEP File Viewer every 2 weeks. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Scanner Assistant | STEP File Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/step-file-viewer/id6755721056/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 62.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 70 MB | 33 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [FEIG ELECTRONIC GmbH](https://appshunter.io/developer/1484784319) | [维 艾](https://appshunter.io/developer/1771300149) |

## What reviewers say

### Scanner Assistant

[App page](https://appshunter.io/ios/app/scanner-assistant/id1627020361)

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

**In-app purchases:** none


### STEP File Viewer

[App page](https://appshunter.io/ios/app/step-file-viewer/id6755721056)

View and interact with 3D CAD files like STEP and IGES. Inspect internal geometry, measure dimensions, and export models in various formats. Ideal for engineers, designers, and students needing to visualize complex designs without expensive software.

**Highlights:** 3D model viewing with pan, zoom, and rotate, Solid, shaded, and wireframe display modes, Measure dimensions and features, Section planes for internal geometry inspection, Export models to STL, OBJ, glTF, and more, Supports assembly data and PMI annotations

**Features:** Family Sharing, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Flex | $1.99 | per 7 days |
| Pro Light | $4.99 | per month |
| Pro Infinity | $19.99 | per year |
| Export as USDZ | $1.99 | one-time |
| Export as PNG | $2.99 | one-time |
| Export as OBJ | $3.99 | one-time |
| Export as STL | $3.99 | one-time |
| IGES/STEP Model Import | $3.99 | one-time |
| Projection view generation & export | $4.99 | one-time |
| Cross Section View | $4.99 | one-time |
| Exploded View | $4.99 | one-time |
| Export all formats | $15.99 | one-time |


## Frequently asked questions

### Is Scanner Assistant free?

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

### Is STEP File Viewer free?

STEP File Viewer is free to download, with in-app purchases available.

### Do Scanner Assistant or STEP File Viewer have ads?

Neither Scanner Assistant nor STEP File Viewer shows ads.

### Which is updated more often, Scanner Assistant or STEP File Viewer?

Scanner Assistant ships an update every 5 weeks, and STEP File Viewer every 2 weeks. Most recently, Scanner Assistant was updated on October 12, 2026 and STEP File Viewer on October 9, 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.*