# 3D Spasticity vs AASM Link

The clearest difference is rating: AASM Link at 5.0 against 3D Spasticity's 4.1. AASM Link also leads on update cadence (every 9 days vs every 6 months). 3D Spasticity's advantage is in-app purchases (none vs 4) and ratings volume (12 vs 3). On price, ads and device support there is nothing between them.

Both are free to download. AASM Link sells 2 in-app purchases, starting at $17.49 per month. 3D Spasticity asks for nothing beyond the download.

AASM Link holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 12 and 3 respectively.

3D Spasticity ships an update every 6 months, AASM Link every 9 days. The most recent releases landed on September 20, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 3D Spasticity | AASM Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (12 ratings)](https://appshunter.io/ios/app/3d-spasticity/id1450310483/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/aasm-link/id6745556028/reviews)** |
| Number of ratings | **12** | 3 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 523 MB | 166 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Allergan, Inc.](https://appshunter.io/developer/420911057) | [American Academy of Sleep Medicine](https://appshunter.io/developer/476461157) |

## What reviewers say

### 3D Spasticity

[App page](https://appshunter.io/ios/app/3d-spasticity/id1450310483)

Explore adult spasticity anatomy in 3D using augmented reality. Scan workbook images to rotate postures, visualize muscles, and fine-tune limb positioning for detailed anatomical understanding. This app is intended for medical professionals.

**Highlights:** Augmented reality anatomy visualization, 360° posture rotation, Muscle depth visualization, Limb positioning fine-tuning, Functional anatomy details, Clinical considerations

**Features:** macOS Compatibility

**In-app purchases:** none


### AASM Link

[App page](https://appshunter.io/ios/app/aasm-link/id6745556028)

This AI-powered medical tool provides sleep medicine professionals with instant access to clinical guidelines, standards of care, and quality measures. It features AI-enhanced search, study tools for board exams, and automatic updates for new or revised standards. Expert-curated reading lists are also available to tailor content to specific clinical interests.

**Highlights:** AI-enhanced guideline search, Board examination study tools, Automatic updates for standards, Expert-curated reading lists, Access to clinical practice guidelines, Quality measure information

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Member Sub - Monthly | $17.49 | per month |
| Non-Member Sub - Monthly | $24.99 | per month |


## Frequently asked questions

### Is 3D Spasticity free?

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

### Is AASM Link free?

AASM Link is free to download, with in-app purchases available.

### Which has better reviews, 3D Spasticity or AASM Link?

AASM Link is rated higher. 3D Spasticity averages 4.1 out of 5 from 12 ratings, while AASM Link averages 5.0 from 3 ratings.

### Do 3D Spasticity or AASM Link have ads?

Neither 3D Spasticity nor AASM Link shows ads.

### Which is updated more often, 3D Spasticity or AASM Link?

3D Spasticity ships an update every 6 months, and AASM Link every 9 days. Most recently, 3D Spasticity was updated on September 20, 2026 and AASM Link on September 14, 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.*