Radiology Core vs ACR Guidance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radiology Core
Prepare for the Radiology Core Exam's physics section with a premium resource. Access over 500 board-relevant questions with detailed explanations, covering all modalities and noninterpretive skills. The app is continually updated with new content to enhance your study time.
- Comprehensive physics review
- Over 500 board-relevant questions
- Full explanation for each question
- Covers all modalities
- Includes noninterpretive skills
- Continually updated content
Read full descriptionHide full description
Premium resource for Radiology Core Exam - Physics preparation. - Comprehensive physics review in all modalities and noninterpretive skills to help make the most of your study time - Over 500 board-relevant, high-yield questions with full explanation to focus your study - Continually updated with new questions and images Upcoming changes: - More questions with images Contact PhysicsiOS@MDToolkit.net with any questions, comments, or advice to improve app.
ACR Guidance
Access clinical guidance content from the ACR on your mobile device. Includes resources for contrast reactions, reporting systems, and incidental findings. Designed for healthcare professionals needing on-the-go reference materials.
- Interactive clinical guidance
- ACR Contrast Reaction Cards
- Reporting and Data Systems (RADS) content
- Incidental Findings (IF) content
- On-the-go reference materials
Read full descriptionHide full description
The ACR® Guidance App provides interactive mobile access to select clinical guidance content from the ACR website. Download to access the ACR Contrast Reaction Cards, Reporting and Data Systems (RADS), and Incidental Findings (IF) content. This app is intended for healthcare professionals such as radiologists, oncologists, referring physicians, and medical students who desire on the go reference materials from ACR. This app is not a medical device and should not be considered as one. ACR provides this mobile app for reference purposes only. It is not intended to substitute for the independent clinical judgment of a physician or other health care professional user. A physician or other user is solely responsible for verifying the currency and applicability of app content to a particular clinical situation and thus assumes all risk of use. As allowable under applicable law, ACR and ACR’s employees, officers, directors, agents, contractors and volunteers will not be liable for any damages arising out of the use or misuse of the app, its content, or calculations. This includes but is not limited to a user’s inability to access the app or any loss or corruption of a user’s data.
Screenshots
Verdict
The clearest difference is price: ACR Guidance at Free against Radiology Core's $9.99. ACR Guidance also leads on update cadence (every 2 months vs every 6 months). Radiology Core's advantage is chart position (#50 vs unranked) and ratings volume (50 vs 12). On rating, review sentiment, ads and in-app purchases 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
ACR Guidance is free to download; Radiology Core costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ACR Guidance holds the better App Store score, 3.1 against 2.9. Both are backed by a comparable volume of ratings — 50 and 12 respectively. Written reviews point the same way: 24% of Radiology Core's written reviews are positive against 25% of ACR Guidance's.
Radiology Core ships an update every 6 months, ACR Guidance every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Radiology Core | ACR Guidance |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 2.9 (50 ratings) | 3.1 (12 ratings) — better |
| Positive reviews | 23.8% of reviews | 25.0% of reviews — better |
| Number of ratings | 50 — better | 12 |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #50 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 25 MB | 111 MB |
| Age rating | 17+ | 17+ |
| Developer | Lieu Duong | The American College of Radiology |
Customer experience
Radiology Core
ACR Guidance
In-app purchases
Radiology Core
No in-app purchases
ACR Guidance
No in-app purchases
Questions
Is Radiology Core free?
Is ACR Guidance free?
Which has better reviews, Radiology Core or ACR Guidance?
Do Radiology Core or ACR Guidance have ads?
Which is updated more often, Radiology Core or ACR Guidance?
Other comparisons















