NEJM Image Challenge vs ACP Audio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NEJM Image Challenge
Test and sharpen your diagnostic and visual skills with challenging clinical photos. This app offers detailed images with zoom capabilities and immediate feedback on diagnoses. It's designed for medical professionals to practice anytime, anywhere.
- Challenging clinical photos
- Zoomable detailed images
- Immediate diagnostic feedback
- See how others answered
- Random image selection
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The NEJM Image Challenge App brings a popular online feature for medical professionals to the iPhone and iPod Touch. Optimized for viewing on the iPhone and iPod Touch, the NEJM Image Challenge App helps you to test and hone your diagnostic and visual skills anytime, anywhere. Please note: Minimum OS version supported is iOS 7.0. The New England Journal of Medicine is known for its compelling medical graphics and illustrations. The NEJM Image Challenge App randomly selects from over 400 challenging clinical photos published weekly in the NEJM Images in Clinical Medicine series. Choose an image and answer multiple-choice questions. Keep taking the challenge until you get it right and then move on to the next challenge! Features: •Detailed images – zoom in to take a closer look •Get immediate feedback – gain more information about the diagnosis •See how others answered and how many took the challenge •Launch or refresh the app for a new selection of random images Check out NEJM This Week, another NEJM iPhone/iTouch app for medical professionals offering free access to recent articles, and a selection of images, audio and video. ABOUT THE NEW ENGLAND JOURNAL OF MEDICINE The New England Journal of Medicine (NEJM) is the most widely read, cited and influential general medical journal in the world and the longest continuously published medical periodical. NEJM is dedicated to bringing physicians the best research and key information at the intersection of biomedical science and clinical practice, and to presenting the information in an understandable and clinically useful format. A career companion, NEJM is a vital, go-to resource for keeping practicing physicians aware of developments of importance to their patients and for training medical students and residents. The New England Journal of Medicine is a publication of NEJM Group, a division of the Massachusetts Medical Society. We welcome your feedback. Please send comments to mobile@nejm.org.
ACP Audio
Access hundreds of hours of medical education content, including clinical lectures and Q&A sessions from national experts. Listen to audio tracks and playlists on various medical topics, create custom playlists, and download content for offline listening.
- Audio versions of ACP educational products
- Hundreds of hours of medical content
- Clinical lectures and Q&A
- Listen to tracks and playlists
- Download tracks for offline listening
- Create favorite track lists
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Expand your clinical knowledge with select audio versions of ACP educational products, such as Internal Medicine Board Review Course Recordings and recordings from ACP’s Internal Medicine Meeting. The ACP Audio app features hundreds of hours of medical education content including clinical lectures and associated Q&A. Listen to tracks and playlists in a variety of topic areas from national experts as they review clinical information and answer targeted questions. You can play audio lectures in any order, create a list of favorite tracks, view your listening history, and download tracks to listen offline. A paid subscription is required to access the content of the app. Privacy Policy: https://www.acponline.org/about-this-site/acp-privacy-policy Terms and Conditions: https://www.acponline.org/about-acp/who-we-are/get-engaged/acp-member-forums/terms-and-conditions
Screenshots
Verdict
The clearest difference is review sentiment: NEJM Image Challenge at 50% against ACP Audio's 0%. NEJM Image Challenge also leads on rating (4.8 vs 3.0) and iOS requirement (8.0 vs 15.6). ACP Audio's advantage is price (Free vs $9.99) and update cadence (every 4 months vs every 16 months). On ratings volume, ads, in-app purchases and device support 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
ACP Audio is free to download; NEJM Image Challenge costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
NEJM Image Challenge holds the better App Store score, 4.8 against 3.0. Both are backed by a comparable volume of ratings — 9 and 8 respectively. Written reviews point the same way: 50% of NEJM Image Challenge's written reviews are positive against 0% of ACP Audio's.
NEJM Image Challenge ships an update every 16 months, ACP Audio every 4 months. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.
| Parameter | NEJM Image Challenge | ACP Audio |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.8 (9 ratings) — better | 3.0 (8 ratings) |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 9 — better | 8 |
| Update frequency | Every 16 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid — better | Subscription |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 5 MB | 105 MB |
| Age rating | 17+ | 17+ |
| Developer | The New England Journal of Medicine | American College of Physicians |
Customer experience
NEJM Image Challenge
ACP Audio
In-app purchases
NEJM Image Challenge
No in-app purchases
ACP Audio
No in-app purchases
Questions
Is NEJM Image Challenge free?
Is ACP Audio free?
Which has better reviews, NEJM Image Challenge or ACP Audio?
Do NEJM Image Challenge or ACP Audio have ads?
Which is updated more often, NEJM Image Challenge or ACP Audio?
Other comparisons
