# ZIG SIM PRO vs 3D Model Viewer

The clearest difference is price: 3D Model Viewer at Free against ZIG SIM PRO's $3.99. 3D Model Viewer also leads on rating (4.4 vs 3.9) and ratings volume (362 vs 8). ZIG SIM PRO's advantage is review sentiment (60% vs 20%) and in-app purchases (none vs 1). On ads and device support there is nothing between them.

3D Model Viewer is free to download; ZIG SIM PRO costs $3.99 up front. 3D Model Viewer sells 1 one-off in-app purchase. ZIG SIM PRO asks for nothing beyond the download.

3D Model Viewer holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: 3D Model Viewer has 362 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 60% of ZIG SIM PRO's written reviews are positive against 20% of 3D Model Viewer's, so the app with the better star average is not the one people write more warmly about.

ZIG SIM PRO ships an update monthly, 3D Model Viewer weekly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ZIG SIM PRO | 3D Model Viewer |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.9 (8 ratings)](https://appshunter.io/ios/app/zig-sim-pro/id1481556614/reviews) | **[4.4 (362 ratings)](https://appshunter.io/ios/app/3d-model-viewer-ar-and-print/id1631145223/reviews)** |
| Number of ratings | 8 | **362** |
| Positive reviews | **60.0% of reviews** | 20.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 4 MB | 17 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [1-10, INC.](https://appshunter.io/developer/1447864635) | [Arthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA.](https://appshunter.io/developer/867175889) |

## What reviewers say

### ZIG SIM PRO

[App page](https://appshunter.io/ios/app/zig-sim-pro/id1481556614)

This app enables physical prototyping by sending sensor and ARKit feature point data to a specified device. It supports various communication protocols and message types for IoT experimentation without electronic kits.

**Highlights:** Send sensor and ARKit feature point data, Monitor feature point data with ARKit, TCP and UDP communication, Supports OSC and JSON message types, Save sensor data to local file, Selectable communication intervals (1-60 FPS)

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

**In-app purchases:** none


### 3D Model Viewer

[App page](https://appshunter.io/ios/app/3d-model-viewer-ar-and-print/id1631145223)

Explore and interact with 3D models on your mobile device. Simulate the 3D printing process to identify potential issues before committing to a print. Visualize your models in augmented reality, adjusting scale and rotation within your real-world environment.

**Highlights:** View 3D models in real-time, Rotate, zoom, and paint models, Simulate 3D printing process, View models in AR mode, Adjust scale and rotation in AR, Supports multiple 3D file formats

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Model Viewer Premium | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Nice app design
- 👍 Simple and well-designed
- 👍 Quick viewing of models
- 👍 Low app size

**What reviewers complain about**

- 👎 Only one free model import
- 👎 Paywall for more models
- 👎 Models shown at incorrect scale
- 👎 App crashes frequently
- 👎 Limited free version

**Reported bugs**

- App crashes immediately after upload
- App crashes when importing PLY files
- App crashes after payment
- App crashes when importing large files
- App crashes on iPad Pro

**Requested features**

- Allow changing background color
- Allow changing lighting positions
- Add axis lock object rotation
- Add way to rotate side to side (turntable)
- Option to slow down rotation/movements


## Frequently asked questions

### Is ZIG SIM PRO free?

ZIG SIM PRO costs $3.99, with no in-app purchases.

### Is 3D Model Viewer free?

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

### Which has better reviews, ZIG SIM PRO or 3D Model Viewer?

3D Model Viewer is rated higher. ZIG SIM PRO averages 3.9 out of 5 from 8 ratings, while 3D Model Viewer averages 4.4 from 362 ratings.

### Do ZIG SIM PRO or 3D Model Viewer have ads?

Neither ZIG SIM PRO nor 3D Model Viewer shows ads.

### Which is updated more often, ZIG SIM PRO or 3D Model Viewer?

ZIG SIM PRO ships an update monthly, and 3D Model Viewer weekly. Most recently, ZIG SIM PRO was updated on October 29, 2026 and 3D Model 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.*