# BasicATTCalc vs 3D Model Viewer

The clearest difference is price: 3D Model Viewer at Free against BasicATTCalc's $1.99. 3D Model Viewer also leads on update cadence (weekly vs every 29 months). BasicATTCalc's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

3D Model Viewer is free to download; BasicATTCalc costs $1.99 up front. 3D Model Viewer sells 1 one-off in-app purchase. BasicATTCalc asks for nothing beyond the download.

BasicATTCalc ships an update every 29 months, 3D Model Viewer weekly. The most recent releases landed on October 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | BasicATTCalc | 3D Model Viewer |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.4 (365 ratings)](https://appshunter.io/ios/app/3d-model-viewer-ar-and-print/id1631145223/reviews)** |
| Number of ratings | — | **365** |
| Positive reviews | — | 20.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 17 MB |
| Requires iOS | **14.5** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [TAKAHIKO FUKUYAMA](https://appshunter.io/developer/857468511) | [Arthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA.](https://appshunter.io/developer/867175889) |

## What reviewers say

### BasicATTCalc

[App page](https://appshunter.io/ios/app/basicattcalc/id947238679)

**Features:** macOS Compatibility

**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 BasicATTCalc free?

BasicATTCalc costs $1.99, with no in-app purchases.

### Is 3D Model Viewer free?

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

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

Neither BasicATTCalc nor 3D Model Viewer shows ads.

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

BasicATTCalc ships an update every 29 months, and 3D Model Viewer weekly. Most recently, BasicATTCalc was updated on October 7, 2026 and 3D Model Viewer on November 12, 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.*