# SimLab CAD Viewer vs 3D File Viewer

The clearest difference is rating: 3D File Viewer at 4.4 against SimLab CAD Viewer's 1.7. 3D File Viewer also leads on review sentiment (33% vs 15%) and ratings volume (54 vs 6). SimLab CAD Viewer's advantage is in-app purchases (none vs 4) and iOS requirement (8.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 3D File Viewer sells 4 in-app purchases, starting at $3.99 per month. SimLab CAD Viewer asks for nothing beyond the download.

3D File Viewer holds the better App Store score, 4.4 against 1.7. That said, the two scores are not equally well evidenced: 3D File Viewer has 54 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 15% of SimLab CAD Viewer's written reviews are positive against 33% of 3D File Viewer's.

SimLab CAD Viewer ships an update every 6 weeks, 3D File Viewer every 3 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SimLab CAD Viewer | 3D File Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (6 ratings)](https://appshunter.io/ios/app/simlab-cad-viewer/id428227180/reviews) | **[4.4 (54 ratings)](https://appshunter.io/ios/app/3d-file-viewer-obj-stp-and-more/id6745021064/reviews)** |
| Number of ratings | 6 | **54** |
| Positive reviews | 15.4% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 45 MB | 11 MB |
| Requires iOS | **8.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simulation Lab Software](https://appshunter.io/developer/428227183) | [Andeesh Mehdi Syed](https://appshunter.io/developer/1676226599) |

## What reviewers say

### SimLab CAD Viewer

[App page](https://appshunter.io/ios/app/simlab-cad-viewer/id428227180)

View 3D CAD and architectural models on your mobile device. Navigate complex scenes with intuitive controls, explore different model configurations, and access files from various cloud storage services and email.

**Highlights:** View 3D CAD and architectural models, Navigate 3D scenes (rotate, pan, zoom), View different model configurations, Supports SimLab Archive (*.zim) files, Supports 3D PDF files, Access files from cloud storage and email

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D File Viewer

[App page](https://appshunter.io/ios/app/3d-file-viewer-obj-stp-and-more/id6745021064)

Easily open and explore 3D model files on your iPhone or iPad. Supports over 20 popular formats, offering smooth viewing with intuitive touch controls. Ideal for designers, engineers, architects, and students working with 3D data.

**Highlights:** Supports over 20 3D file formats, Fast and smooth 3D file viewing, Zoom, rotate, and pan with touch controls, Open files from Files app or other apps, Lightweight and easy to use, No account required

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads - Monthly | $3.99 | per month |
| Remove Ads - Annual | $29.99 | per year |
| Remove Ads - Lifetime | $29.99 | one-time |
| Remove Ads | $29.99 | one-time |


## Frequently asked questions

### Is SimLab CAD Viewer free?

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

### Is 3D File Viewer free?

3D File Viewer is free to download, with in-app purchases available.

### Which has better reviews, SimLab CAD Viewer or 3D File Viewer?

3D File Viewer is rated higher. SimLab CAD Viewer averages 1.7 out of 5 from 6 ratings, while 3D File Viewer averages 4.4 from 54 ratings.

### Do SimLab CAD Viewer or 3D File Viewer have ads?

Neither SimLab CAD Viewer nor 3D File Viewer shows ads.

### Which is updated more often, SimLab CAD Viewer or 3D File Viewer?

SimLab CAD Viewer ships an update every 6 weeks, and 3D File Viewer every 3 weeks. Most recently, SimLab CAD Viewer was updated on November 1, 2026 and 3D File Viewer on October 31, 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.*