# IOL vs Eyedea Refractive

The clearest difference is rating: Eyedea Refractive at 5.0 against IOL's 3.6. IOL's advantage is update cadence (weekly vs fortnightly) and ratings volume (9 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Eyedea Refractive holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 9 and 3 respectively.

IOL ships an update weekly, Eyedea Refractive fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | IOL | Eyedea Refractive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (9 ratings)](https://appshunter.io/ios/app/iol-calculator/id456304691/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/eyedea-refractive/id1501282600/reviews)** |
| Number of ratings | **9** | 3 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | Free |
| Size | 1 MB | 57 MB |
| Requires iOS | **11.2** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Columbia University](https://appshunter.io/developer/405514802) | [Eyedea Educacao e Desenvolvimento em Oftalmologia LTDA](https://appshunter.io/developer/1524074580) |

## What reviewers say

### IOL

[App page](https://appshunter.io/ios/app/iol-calculator/id456304691)

This medical tool assists in calculating intraocular lens power for cataract surgery. It provides essential calculations for ophthalmologists and eye care professionals.

**Highlights:** Intraocular lens power calculation, Cataract surgery assistance, Medical calculation tool, Ophthalmology aid

**Features:** Vision Pro support

**In-app purchases:** none


### Eyedea Refractive

[App page](https://appshunter.io/ios/app/eyedea-refractive/id1501282600)

This medical app assists ophthalmologists in pre-operative evaluations for refractive surgeries like Lasik and PRK. It calculates various metrics after applying nomograms, aiding in surgical indication judgments alongside clinical evaluation.

**Highlights:** Refractive surgery calculator, Pre-operative evaluation tool, LASIK, Lenticular Extraction, PRK support, Nomogram application, Post-surgery refraction calculation, Residual stromal bed estimation

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

**In-app purchases:** none


## Frequently asked questions

### Is IOL free?

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

### Is Eyedea Refractive free?

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

### Which has better reviews, IOL or Eyedea Refractive?

Eyedea Refractive is rated higher. IOL averages 3.6 out of 5 from 9 ratings, while Eyedea Refractive averages 5.0 from 3 ratings.

### Do IOL or Eyedea Refractive have ads?

Neither IOL nor Eyedea Refractive shows ads.

### Which is updated more often, IOL or Eyedea Refractive?

IOL ships an update weekly, and Eyedea Refractive fortnightly. Most recently, IOL was updated on November 6, 2026 and Eyedea Refractive on November 3, 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.*