# OptiExpert™ vs iTorsion

The clearest difference is review sentiment: iTorsion at 100% against OptiExpert™'s 22%. iTorsion also leads on rating (5.0 vs 4.0) and iOS requirement (10.3 vs 15.0). On price, ratings volume, update cadence and ads 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 4.0. Both are backed by a comparable volume of ratings — 7 and 6 respectively. Written reviews point the same way: 22% of OptiExpert™'s written reviews are positive against 100% of iTorsion's.

OptiExpert™ ships an update every 2 months, iTorsion every 3 months. Both last shipped on November 11, 2026.

## The numbers

| Metric | OptiExpert™ | iTorsion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (7 ratings)](https://appshunter.io/ios/app/optiexpert/id922445936/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/itorsion/id1358552637/reviews)** |
| Number of ratings | **7** | 6 |
| Positive reviews | 22.2% 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 | 63 MB | 17 MB |
| Requires iOS | 15.0 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [CooperVision, Inc.](https://appshunter.io/developer/922445935) | [Regents of the University of Minnesota](https://appshunter.io/developer/455216626) |

## What reviewers say

### OptiExpert™

[App page](https://appshunter.io/ios/app/optiexpert/id922445936)

This app assists eye care professionals in managing contact lens wearers. It offers tools for prescription calculation, axial length estimation, cost comparison, and grading contact lens complications with visual aids. It also supports patient education and secure record-keeping.

**Highlights:** Prescription Calculator, Axial Length Estimator, Cost Comparison Calculator, Efron Grading Scale, Patient Image Storage, Multilingual Support

**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 OptiExpert™ free?

OptiExpert™ 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, OptiExpert™ or iTorsion?

iTorsion is rated higher. OptiExpert™ averages 4.0 out of 5 from 7 ratings, while iTorsion averages 5.0 from 6 ratings.

### Do OptiExpert™ or iTorsion have ads?

Neither OptiExpert™ nor iTorsion shows ads.

### Which is updated more often, OptiExpert™ or iTorsion?

OptiExpert™ ships an update every 2 months, and iTorsion every 3 months. Most recently, OptiExpert™ was updated on November 11, 2026 and iTorsion on November 11, 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.*