# 9 Gaze vs iTorsion

The clearest difference is rating: iTorsion at 5.0 against 9 Gaze's 4.6. iTorsion also leads on review sentiment (100% vs 86%) and iOS requirement (10.3 vs 13.0). 9 Gaze's advantage is ratings volume (22 vs 6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

iTorsion holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 22 and 6 respectively. Written reviews point the same way: 86% of 9 Gaze's written reviews are positive against 100% of iTorsion's.

9 Gaze ships an update every 2 months, iTorsion every 3 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 9 Gaze | iTorsion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (22 ratings)](https://appshunter.io/ios/app/9-gaze/id1173442389/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/itorsion/id1358552637/reviews)** |
| Number of ratings | **22** | 6 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 36 MB | 17 MB |
| Requires iOS | 13.0 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [See Vision, LLC](https://appshunter.io/developer/1173442388) | [Regents of the University of Minnesota](https://appshunter.io/developer/455216626) |

## What reviewers say

### 9 Gaze

[App page](https://appshunter.io/ios/app/9-gaze/id1173442389)

This app helps document eye motility and strabismus in nine cardinal positions. It offers an on-screen guide for consistent eye positioning and automatically creates composite images for easy exporting. Users can add strabismus measurements and email or save images for medical records.

**Highlights:** Document eye motility and strabismus, On-screen guide for eye positioning, Automatic composite image creation, Add strabismus measurements, Selfie or standard mode, Email or save images

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

**In-app purchases:** none


### iTorsion

[App page](https://appshunter.io/ios/app/itorsion/id1358552637)

This medical app simplifies diagnosing ocular torsion using just a smartphone and red/green glasses. It offers greater precision than traditional methods, providing extorsion and intorsion measurements for each eye after a patient test.

**Highlights:** Ocular torsion diagnosis, Smartphone-based testing, Red/green glasses compatibility, Precise measurement, Extorsion and intorsion calculation, Customizable color values

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

**In-app purchases:** none


## Frequently asked questions

### Is 9 Gaze free?

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

### Is iTorsion free?

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

### Which has better reviews, 9 Gaze or iTorsion?

iTorsion is rated higher. 9 Gaze averages 4.6 out of 5 from 22 ratings, while iTorsion averages 5.0 from 6 ratings.

### Do 9 Gaze or iTorsion have ads?

Neither 9 Gaze nor iTorsion shows ads.

### Which is updated more often, 9 Gaze or iTorsion?

9 Gaze ships an update every 2 months, and iTorsion every 3 months. Most recently, 9 Gaze was updated on October 24, 2026 and iTorsion on October 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.*