# ContrastRx vs CTisus Pancreas Compendium

The clearest difference is review sentiment: CTisus Pancreas Compendium at 100% against ContrastRx's 50%. CTisus Pancreas Compendium also leads on rating (5.0 vs 4.4). ContrastRx's advantage is update cadence (every 3 weeks vs every 26 months). On price, ratings volume, ads 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.

CTisus Pancreas Compendium holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 9 and 7 respectively. Written reviews point the same way: 50% of ContrastRx's written reviews are positive against 100% of CTisus Pancreas Compendium's.

ContrastRx ships an update every 3 weeks, CTisus Pancreas Compendium every 26 months. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | ContrastRx | CTisus Pancreas Compendium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (9 ratings)](https://appshunter.io/ios/app/contrastrx/id619478666/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/ctisus-pancreas-compendium/id1155106625/reviews)** |
| Number of ratings | **9** | 7 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 26 months |
| Monetization | Free | Free |
| Size | 9 MB | 67 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Mayo Clinic](https://appshunter.io/developer/350350016) | [Elliot Fishman](https://appshunter.io/developer/399024444) |

## 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


### CTisus Pancreas Compendium

[App page](https://appshunter.io/ios/app/ctisus-pancreas-compendium/id1155106625)

This medical app offers a comprehensive guide to pancreatic tumors. It features a systematic checklist for mass etiology, a curated case review, and educational lectures with illustrations. Users can also test their diagnostic skills with quiz cases.

**Highlights:** Systematic checklist for pancreatic mass etiology, Review of 2000+ pathologically proven cases, Educational lectures on pancreatic tumors, Illustrations of pancreatic anatomy and surgery, Quiz cases for diagnostic testing

**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 CTisus Pancreas Compendium free?

CTisus Pancreas Compendium is free to download, with no in-app purchases.

### Which has better reviews, ContrastRx or CTisus Pancreas Compendium?

CTisus Pancreas Compendium is rated higher. ContrastRx averages 4.4 out of 5 from 9 ratings, while CTisus Pancreas Compendium averages 5.0 from 7 ratings.

### Do ContrastRx or CTisus Pancreas Compendium have ads?

Neither ContrastRx nor CTisus Pancreas Compendium shows ads.

### Which is updated more often, ContrastRx or CTisus Pancreas Compendium?

ContrastRx ships an update every 3 weeks, and CTisus Pancreas Compendium every 26 months. Most recently, ContrastRx was updated on November 3, 2026 and CTisus Pancreas Compendium on November 6, 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.*