ContrastRx vs Radiology Core
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ContrastRx
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.
- Treatment regimens for contrast reactions
- Clinical descriptions and pictorial examples
- eGFR calculator
- Pediatric dose calculator
- Steroid pretreatment regimens
- Nephrogenic systemic fibrosis overview
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This app provides quick access to treatment regimens for potentially life-threatening reactions that can occur with iodine or gadolinium radiographic contrast. Included are clinical descriptions, pictorial examples, sound clips, and treatment regimens for the various types of reactions. Also included are a pediatric dose calculator, an eGFR calculator, a self-assessment module, pretreatment medication regimens, and an overview of nephrogenic systemic fibrosis.
Radiology Core
Prepare for your Radiology Core Exam with this free resource. It offers a growing question bank to help you study. Contact the developer with feedback for improvements.
- Radiology Core Exam preparation
- Physics subject focus
- Growing question bank
- Free resource
- Feedback integration
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Free resource for Radiology Core Exam preparation. Please realize this is work in progress by one person. Upcoming changes: - More questions with images Contact PhysicsiOS@MDToolkit.net with any questions, comments, or advice to improve app.
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Verdict
The clearest difference is review sentiment: Radiology Core at 100% against ContrastRx's 50%. Radiology Core also leads on rating (5.0 vs 4.4) and iOS requirement (9.0 vs 16.6). ContrastRx's advantage is update cadence (every 3 weeks vs every 22 months) and ratings volume (9 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Radiology Core holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: ContrastRx has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of ContrastRx's written reviews are positive against 100% of Radiology Core's.
ContrastRx ships an update every 3 weeks, Radiology Core every 22 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.
| Parameter | ContrastRx | Radiology Core |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (9 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 3 weeks — better | Every 22 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 20 MB |
| Age rating | 17+ | 17+ |
| Developer | Mayo Clinic | Lieu Duong |
Customer experience
ContrastRx
Radiology Core
In-app purchases
ContrastRx
No in-app purchases
Radiology Core
No in-app purchases
Questions
Is ContrastRx free?
Is Radiology Core free?
Which has better reviews, ContrastRx or Radiology Core?
Do ContrastRx or Radiology Core have ads?
Which is updated more often, ContrastRx or Radiology Core?
Other comparisons
