# iToxin vs 3D Cervical Dystonia

The clearest difference is update cadence: iToxin at every 4 months against 3D Cervical Dystonia's every 16 months. 3D Cervical Dystonia's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

iToxin ships an update every 4 months, 3D Cervical Dystonia every 16 months. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | iToxin | 3D Cervical Dystonia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (89 ratings)](https://appshunter.io/ios/app/3d-cervical-dystonia/id1571537372/reviews)** |
| Number of ratings | — | **89** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 16 months |
| Monetization | — | Free |
| Size | 740 MB | 444 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Teracat](https://appshunter.io/developer/562843085) | [Allergan, Inc.](https://appshunter.io/developer/420911057) |

## What reviewers say

### iToxin

[App page](https://appshunter.io/ios/app/itoxin/id1197347362)

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D Cervical Dystonia

[App page](https://appshunter.io/ios/app/3d-cervical-dystonia/id1571537372)

Explore cervical dystonia anatomy with a 3D model and augmented reality. Manipulate postures, view muscle layers, and simulate head tremors. Requires a specific workbook to activate.

**Highlights:** 360-degree posture rotation, Adjustable head and shoulder movements, Detailed muscle layer visualization, Simulated head tremor, Functional anatomy details, Augmented reality integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iToxin free?

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

### Is 3D Cervical Dystonia free?

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

### Do iToxin or 3D Cervical Dystonia have ads?

Neither iToxin nor 3D Cervical Dystonia shows ads.

### Which is updated more often, iToxin or 3D Cervical Dystonia?

iToxin ships an update every 4 months, and 3D Cervical Dystonia every 16 months. Most recently, iToxin was updated on September 17, 2026 and 3D Cervical Dystonia on September 20, 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.*