# ContrastRx vs MML Education

The clearest difference is rating: ContrastRx at 4.4 against MML Education's 3.7. ContrastRx also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (9 vs 3). MML Education's advantage is iOS requirement (8.0 vs 16.6). 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.

ContrastRx holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 9 and 3 respectively.

ContrastRx ships an update every 3 weeks, MML Education every 4 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ContrastRx | MML Education |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/contrastrx/id619478666/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/mml-education/id935755927/reviews) |
| Number of ratings | **9** | 3 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 9 MB | 46 MB |
| Requires iOS | 16.6 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Mayo Clinic](https://appshunter.io/developer/350350016) | [Cadmium, LLC.](https://appshunter.io/developer/464948984) |

## What reviewers say

### ContrastRx

[App page](https://appshunter.io/ios/app/contrastrx/id619478666)

Provides quick access to treatment regimens for life-threatening reactions to radiographic contrast agents. Includes clinical descriptions, visual examples, and treatment protocols, along with helpful calculators and information on nephrogenic systemic fibrosis.

**Highlights:** Treatment regimens for contrast reactions, Clinical descriptions and pictorial examples, eGFR calculator, Pediatric dose calculator, Steroid pretreatment regimens, Nephrogenic systemic fibrosis overview

**Features:** Vision Pro support

**In-app purchases:** none


### MML Education

[App page](https://appshunter.io/ios/app/mml-education/id935755927)

Access presentations, speaker details, and resources for select Mayo Clinic meetings. Draw, highlight, and take notes directly on presentation slides, with all notes saved online for later access.

**Highlights:** Access meeting presentations, View speaker details, Draw and highlight on slides, Take notes on slides, Online note saving and access

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

**In-app purchases:** none


## Frequently asked questions

### Is ContrastRx free?

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

### Is MML Education free?

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

### Which has better reviews, ContrastRx or MML Education?

ContrastRx is rated higher. ContrastRx averages 4.4 out of 5 from 9 ratings, while MML Education averages 3.7 from 3 ratings.

### Do ContrastRx or MML Education have ads?

Neither ContrastRx nor MML Education shows ads.

### Which is updated more often, ContrastRx or MML Education?

ContrastRx ships an update every 3 weeks, and MML Education every 4 months. Most recently, ContrastRx was updated on October 21, 2026 and MML Education on October 24, 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.*