# IOL Reference vs Slit Lamp Camera

The clearest difference is price: IOL Reference at Free against Slit Lamp Camera's $2.99. IOL Reference also leads on update cadence (weekly vs every 4 weeks) and ratings volume (15 vs 1). Slit Lamp Camera's advantage is rating (5.0 vs 4.7). On ads and in-app purchases there is nothing between them.

IOL Reference is free to download; Slit Lamp Camera costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Slit Lamp Camera holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: IOL Reference has 15 ratings behind it against 1, so its average is the more settled of the two.

IOL Reference ships an update weekly, Slit Lamp Camera every 4 weeks. The most recent releases landed on July 5, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | IOL Reference | Slit Lamp Camera |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/iol-reference/id1626671895/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/slit-lamp-camera/id6736861390/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | **Free** | Paid |
| Size | 823 MB | 2 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gurpal Virdi](https://appshunter.io/developer/1626671897) | [My Call Bag LLC](https://appshunter.io/developer/1243282862) |

## 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


### Slit Lamp Camera

[App page](https://appshunter.io/ios/app/slit-lamp-camera/id6736861390)

Capture high-quality eye examination photos and videos directly through your slit lamp. Features include advanced camera controls, patient information integration, and a comparison tool to track changes over time. Annotate images and record dynamic examinations with this intuitive medical photography app.

**Highlights:** Slit lamp photography, Advanced camera controls, Patient information integration, Image comparison tool, Image annotation, Video recording, Date and time stamping

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

**In-app purchases:** none


## Frequently asked questions

### Is IOL Reference free?

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

### Is Slit Lamp Camera free?

Slit Lamp Camera costs $2.99, with no in-app purchases.

### Which has better reviews, IOL Reference or Slit Lamp Camera?

Slit Lamp Camera is rated higher. IOL Reference averages 4.7 out of 5 from 15 ratings, while Slit Lamp Camera averages 5.0 from 1 ratings.

### Do IOL Reference or Slit Lamp Camera have ads?

Neither IOL Reference nor Slit Lamp Camera shows ads.

### Which is updated more often, IOL Reference or Slit Lamp Camera?

IOL Reference ships an update weekly, and Slit Lamp Camera every 4 weeks. Most recently, IOL Reference was updated on July 5, 2026 and Slit Lamp Camera on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*