NEJM Image Challenge Downloads & RevenueNEJM Image Challenge · App Store
NEJM Image Challenge is #24 in Medical Paid in China and charting in 14 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperThe New England Journal of Medicine
CategoryMedical
Price9.99 USD
Released
Rating★ 4.8 (9)
Version1.7
Age rating17+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)1k+ worldwide
NEJM Image Challenge update history & changes
Last change · 15 events since 6 Dec 2010Full timeline ↓Full timeline · 14 events in the last 12 months
- 📈NEJM Image Challenge entered the top 100Top Paid · Medical · AU
- 📈NEJM Image Challenge entered the top 100Top Grossing · Medical · CN
- 📈NEJM Image Challenge charting in a new countryMexico
- 📈NEJM Image Challenge entered the top 100Top Paid · Medical · DE
- 📈NEJM Image Challenge entered the top 10Top Paid · Medical · SA
- 📈NEJM Image Challenge new best rank in the overall chart: #76Top Paid · All Apps · SA
- 📈NEJM Image Challenge entered the top 100 in 2 chartsTop Paid · All Apps · SA · Top Grossing · Medical · SA
- 📈NEJM Image Challenge entered the top 10Top Paid · Medical · BR
- 📈NEJM Image Challenge entered the top 100Top Grossing · Medical · BR
- 📈NEJM Image Challenge entered the top 100Top Paid · Medical · ID
- 📈NEJM Image Challenge charting in a new country in 3 chartsGermany · Indonesia · United States
- 📈NEJM Image Challenge entered the top 100Top Paid · Medical · US
- 🆕NEJM Image Challenge first spotted by AppInsider#68 in Top Paid · Medical · France
- 🆕NEJM Image Challenge released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.8 ★
9 ratings
Measured
Best rank now
#24
Medical PaidMeasured
NEJM Image Challenge on the App Store
App details
App ID
403219522
Publisher
Massachusetts Medical Society
On the store since
Dec 2010
15 years on the store
Minimum OS
iOS 8.0+
iPhone 4s and later
Devices
iPhone · iPad · Watch
Content rating
17+
1 content note below
Languages
1
EN
Size
5 MB
Also listed in
Education
Content notesFrequent/Intense Medical/Treatment Information
NEJM Image Challenge downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | MedicalPaid | #24 |
 Japan | MedicalPaid | #52 |
 South Korea | MedicalPaid | #26 |
 India | MedicalPaid | #32 |
| France | MedicalPaid | #60 |
 Australia | MedicalPaid | #52 |
 Brazil | MedicalPaid | #53 |
 Saudi Arabia | MedicalPaid | #34 |
 United Kingdom | MedicalPaid | #130 |
 Germany | MedicalPaid | #115 |
 Italy | MedicalPaid | #52 |
 Russia | MedicalPaid | #77 |
 United Arab Emirates | MedicalPaid | #42 |
 Indonesia | MedicalPaid | #101 |
Apps near NEJM Image Challenge on the chart
Medical Paid, around #24.
Ratings
App Store, worldwide.
Rating
4.8 ★
9 ratings
Measured
Ratings
9
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.2★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Medical apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about NEJM Image Challenge
From the 9 most recent App Store reviews in the US.
Mixed but leaning positive (67% of recent reviews give 4–5 stars). People like it for good value, and its features and content. The main complaints are about price and subscriptions. Recent reviews are more positive than earlier ones.
What people like
- Price & subscription: “Good app but as a subscriber would like to see iPad version”
- Features & content: “Option to randomly practice/quiz/learn with old images, or sort by newest and just keep up with new ones”
- Fun: “Good learning, easy/fun to use”
- Useful
Common complaints
- Price & subscription: “Great idea poorly executed - save your money”
About NEJM Image Challenge
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 [email protected].
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 [email protected].
Latest updates
1.7