# 3D CAD Model Viewer vs 3D

The clearest difference is rating: 3D CAD Model Viewer at 3.3 against 3D's 1.0. 3D CAD Model Viewer also leads on review sentiment (40% vs 0%) and update cadence (every 5 weeks vs every 5 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

3D CAD Model Viewer holds the better App Store score, 3.3 against 1.0. That said, the two scores are not equally well evidenced: 3D CAD Model Viewer has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 40% of 3D CAD Model Viewer's written reviews are positive against 0% of 3D's.

3D CAD Model Viewer ships an update every 5 weeks, 3D every 5 months. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 3D CAD Model Viewer | 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (13 ratings)](https://appshunter.io/ios/app/3d-cad-model-viewer/id973428442/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/3d-viewer/id1416574526/reviews) |
| Number of ratings | **13** | 2 |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 50 MB | 47 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Machine Research Corporation](https://appshunter.io/developer/973428441) | [ProtoTech Solutions and Services Pvt. Ltd.](https://appshunter.io/developer/365252924) |

## What reviewers say

### 3D CAD Model Viewer

[App page](https://appshunter.io/ios/app/3d-cad-model-viewer/id973428442)

Easily view, analyze, and share 3D CAD models and drawings from various file formats. Organize your models into a catalog for quick reference and access job information. Streamline your quoting process by leveraging past projects and profitability data.

**Highlights:** View models from any angle, Apply bounding box for measurements, Markup and annotate models, Build a catalog of models, Translate models to STL, STEP, 3D PDFs, Share models via email or Slack

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D

[App page](https://appshunter.io/ios/app/3d-viewer/id1416574526)

View and navigate 3D models in various formats like OBJ, STL, DAE, and PDF. Easily zoom, pan, and rotate models using multi-touch gestures. Import files directly from cloud storage services like Dropbox and Box.

**Highlights:** View 3D models in OBJ, STL, DAE, and PDF formats, Multi-touch gestures for zoom, pan, and rotate, Import models from Dropbox and Box, Supports meshes and colors, Open password-protected PDF files

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3D CAD Model Viewer free?

3D CAD Model Viewer is free to download, with no in-app purchases.

### Is 3D free?

3D is free to download, with no in-app purchases.

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

3D CAD Model Viewer is rated higher. 3D CAD Model Viewer averages 3.3 out of 5 from 13 ratings, while 3D averages 1.0 from 2 ratings.

### Do 3D CAD Model Viewer or 3D have ads?

Neither 3D CAD Model Viewer nor 3D shows ads.

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

3D CAD Model Viewer ships an update every 5 weeks, and 3D every 5 months. Most recently, 3D CAD Model Viewer was updated on October 5, 2026 and 3D on October 15, 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.*