# IOL Reference vs Eye

The clearest difference is update cadence: IOL Reference at weekly against Eye's every 6 weeks. IOL Reference also leads on ratings volume (15 vs 4). Eye's advantage is rating (5.0 vs 4.7) and iOS requirement (12.4 vs 15.5). 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.

Eye holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 15 and 4 respectively.

IOL Reference ships an update weekly, Eye every 6 weeks. The most recent releases landed on July 5, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | IOL Reference | Eye |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/iol-reference/id1626671895/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/eye-check/id1643416389/reviews)** |
| Number of ratings | **15** | 4 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 823 MB | 12 MB |
| Requires iOS | 15.5 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Gurpal Virdi](https://appshunter.io/developer/1626671897) | [Soryan Kumar](https://appshunter.io/developer/1628353347) |

## What reviewers say

### IOL Reference

[App page](https://appshunter.io/ios/app/iol-reference/id1626671895)

This ophthalmology utility helps surgeons find FDA-approved intraocular lenses. It features a searchable database of nearly 10,000 lenses, updated with new approvals and changes. The app also serves as a social media and networking platform for eye care professionals.

**Highlights:** Searchable IOL database, FDA-approved lens catalog, Database updates, Ophthalmology networking, Eye care tools

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

**In-app purchases:** none


### Eye

[App page](https://appshunter.io/ios/app/eye-check/id1643416389)

This app guides health science students through the ophthalmology intake process, with features for patient history, eye exams, medication information, and a glossary. It's optimized for low-resource, Spanish-speaking clinics and includes bilingual instructions.

**Highlights:** Bilingual history taking (English/Spanish), Guided eye exam procedures, Ophthalmology medication guide, Glossary of conditions with Spanish translations, Integrated Snellen charts and flashlight tool

**In-app purchases:** none


## Frequently asked questions

### Is IOL Reference free?

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

### Is Eye free?

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

### Which has better reviews, IOL Reference or Eye?

Eye is rated higher. IOL Reference averages 4.7 out of 5 from 15 ratings, while Eye averages 5.0 from 4 ratings.

### Do IOL Reference or Eye have ads?

Neither IOL Reference nor Eye shows ads.

### Which is updated more often, IOL Reference or Eye?

IOL Reference ships an update weekly, and Eye every 6 weeks. Most recently, IOL Reference was updated on July 5, 2026 and Eye on June 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.*