Comparison

Radiology Core vs ACR Guidance

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Comprehensive physics review
  • Over 500 board-relevant questions
  • Full explanation for each question
  • Covers all modalities
  • Includes noninterpretive skills
  • Continually updated content
Features
Currently charting
Read 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.

About

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.

Highlights
  • Interactive clinical guidance
  • ACR Contrast Reaction Cards
  • Reporting and Data Systems (RADS) content
  • Incidental Findings (IF) content
  • On-the-go reference materials
Features
Read 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

Radiology Core4 screens
ACR Guidance4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 5 level
Radiology Core versus ACR Guidance: the parameters behind the verdict, then further details
ParameterRadiology CoreACR Guidance
Price$9.99Free — better
Rating2.9 (50 ratings)3.1 (12 ratings) — better
Positive reviews23.8% of reviews25.0% of reviews — better
Number of ratings50 — better12
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#50 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size25 MB111 MB
Age rating17+17+
DeveloperLieu DuongThe American College of Radiology

Customer experience

Radiology Core

All ratings50 ratings
Positive40.0%
Neutral18.0%
Negative42.0%
Written reviews21 reviews
Positive23.8%
Neutral28.6%
Negative47.6%

ACR Guidance

All ratings12 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

Radiology Core

No in-app purchases

None

ACR Guidance

No in-app purchases

Questions

Is Radiology Core free?
Radiology Core costs $9.99, with no in-app purchases.
Is ACR Guidance free?
ACR Guidance is free to download, with no in-app purchases.
Which has better reviews, Radiology Core or ACR Guidance?
ACR Guidance is rated higher. Radiology Core averages 2.9 out of 5 from 50 ratings, while ACR Guidance averages 3.1 from 12 ratings.
Do Radiology Core or ACR Guidance have ads?
Neither Radiology Core nor ACR Guidance shows ads.
Which is updated more often, Radiology Core or ACR Guidance?
Radiology Core ships an update every 6 months, and ACR Guidance every 2 months. Most recently, Radiology Core was updated on November 2, 2026 and ACR Guidance on November 3, 2026.

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