# OptiExpert™ vs Keratokonus

The clearest difference is iOS requirement: Keratokonus at 13.0 against OptiExpert™'s 15.0. 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.

OptiExpert™ ships an update every 2 months, Keratokonus every 3 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | OptiExpert™ | Keratokonus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (7 ratings)](https://appshunter.io/ios/app/optiexpert/id922445936/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 63 MB | 21 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CooperVision, Inc.](https://appshunter.io/developer/922445935) | [Agamyrat Yegenmyradow](https://appshunter.io/developer/1629831531) |

## 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


### Keratokonus

[App page](https://appshunter.io/ios/app/keratokonus/id6736678312)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OptiExpert™ free?

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

### Is Keratokonus free?

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

### Do OptiExpert™ or Keratokonus have ads?

Neither OptiExpert™ nor Keratokonus shows ads.

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

OptiExpert™ ships an update every 2 months, and Keratokonus every 3 months. Most recently, OptiExpert™ was updated on November 1, 2026 and Keratokonus on October 27, 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.*