# IOL Reference vs Market Scope+

The clearest difference is ads: IOL Reference at none against Market Scope+'s shown. IOL Reference also leads on monetization model (free vs free with in-app purchases) and update cadence (weekly vs every 6 weeks). On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 4.7 for IOL Reference against 4.8 for Market Scope+. Both are backed by a comparable volume of ratings — 15 and 6 respectively.

IOL Reference ships an update weekly, Market Scope+ every 6 weeks. The most recent releases landed on July 5, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | IOL Reference | Market Scope+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/iol-reference/id1626671895/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/market-scope-plus/id1642558540/reviews)** |
| Number of ratings | **15** | 6 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 823 MB | 32 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gurpal Virdi](https://appshunter.io/developer/1626671897) | [Market Scope Ltd.](https://appshunter.io/developer/1642558542) |

## 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


### Market Scope+

[App page](https://appshunter.io/ios/app/market-scope-plus/id1642558540)

Connect with over 500 ophthalmic companies and 2,000 eye care practices globally. Share your expertise through surveys and access market research reports. Stay updated on industry news and participate in polls.

**Highlights:** Connect with eye care providers and companies, Participate in syndicated and sponsored surveys, Access practice benchmark reports, License market reports and data subscriptions, Read ophthalmic news, Participate in weekly polls

**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 Market Scope+ free?

Market Scope+ is free to download, with no in-app purchases.

### Which has better reviews, IOL Reference or Market Scope+?

Market Scope+ is rated higher. IOL Reference averages 4.7 out of 5 from 15 ratings, while Market Scope+ averages 4.8 from 6 ratings.

### Do IOL Reference or Market Scope+ have ads?

Market Scope+ shows ads; IOL Reference does not.

### Which is updated more often, IOL Reference or Market Scope+?

IOL Reference ships an update weekly, and Market Scope+ every 6 weeks. Most recently, IOL Reference was updated on July 5, 2026 and Market Scope+ on September 29, 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.*