# IOL Reference vs Hydroxychloroquine Calculator

The clearest difference is price: IOL Reference at Free against Hydroxychloroquine Calculator's $1.99. IOL Reference also leads on ratings volume (15 vs 1). Hydroxychloroquine Calculator's advantage is rating (5.0 vs 4.7). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

IOL Reference is free to download; Hydroxychloroquine Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hydroxychloroquine Calculator 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.

## The numbers

| Metric | IOL Reference | Hydroxychloroquine Calculator |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/iol-reference/id1626671895/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydroxychloroquine-calculator/id6738626567/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | **Free** | Paid |
| Size | 823 MB | 0 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| 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


### Hydroxychloroquine Calculator

[App page](https://appshunter.io/ios/app/hydroxychloroquine-calculator/id6738626567)

This medical calculator assists healthcare providers in determining safe hydroxychloroquine and chloroquine dosages. It offers instant weight-based calculations, unit conversions, and cumulative dose tracking, with clear warnings for exceeding recommended limits.

**Highlights:** Weight-based dosing calculation (mg/kg/day), Metric and imperial unit conversion, Cumulative dose tracking, Retinopathy risk time-to-threshold calculations, Hydroxychloroquine and chloroquine support, Dose limit warnings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IOL Reference free?

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

### Is Hydroxychloroquine Calculator free?

Hydroxychloroquine Calculator costs $1.99, with no in-app purchases.

### Which has better reviews, IOL Reference or Hydroxychloroquine Calculator?

Hydroxychloroquine Calculator is rated higher. IOL Reference averages 4.7 out of 5 from 15 ratings, while Hydroxychloroquine Calculator averages 5.0 from 1 ratings.

### Do IOL Reference or Hydroxychloroquine Calculator have ads?

Neither IOL Reference nor Hydroxychloroquine Calculator shows ads.

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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.*