12 Lead ECG Challenge Downloads & Revenue12 Lead ECG Challenge · App Store
12 Lead ECG Challenge is #3 in Medical Paid in Australia and charting in 5 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
25 Sep 202612 Lead ECG Challenge update history & changes
Last change · 10 events since 6 Sep 2011Full timeline ↓Full timeline · 10 events
- 📈12 Lead ECG Challenge entered the top 10Top Paid · Medical · AU
- 📈12 Lead ECG Challenge entered the top 100Top Grossing · Medical · AU
- 📈12 Lead ECG Challenge entered the top 100Top Paid · Medical · AU
- 📈12 Lead ECG Challenge entered the top 100Top Paid · Medical · CA
- 📈12 Lead ECG Challenge entered the top 100Top Paid · Medical · US
- 📈12 Lead ECG Challenge charting in a new countryUnited States
- 📈12 Lead ECG Challenge charting in a new country in 2 chartsCanada · Indonesia
- 🆕12 Lead ECG Challenge first spotted by AppInsider#93 in Top Paid · Medical · United Arab Emirates
- 📦12 Lead ECG Challenge version 4.2.3Hisyory bug fix
- 🆕12 Lead ECG 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.
Medical Paid12 Lead ECG Challenge at a glance
AI summary written from our chart and store data, 2026-11-11. It can be wrong: check the numbers above.
A paid medical training app offering 180 real-world 12-lead ECG cases with expert explanations for EMS providers, nurses, and physicians. The app holds a top-three position in the Australian Medical Paid category but trails significantly in the UK market at #145, indicating strong regional traction in Australia compared to weaker penetration elsewhere.
Similar apps: ECG Master Pro, 12-Lead ECG Interpretation, CardioInsight
12 Lead ECG Challenge on the App Store
App details
12 Lead ECG 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
Where 12 Lead ECG Challenge's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Australia | MedicalPaid | #3 |
| Australia | MedicalGrossing | #32 |
| Australia | All AppsPaid | #57 |
 United Kingdom | MedicalPaid | #146 |
 Canada | MedicalPaid | #146 |
 Indonesia | MedicalPaid | #200 |
| United Arab Emirates | MedicalPaid | #199 |
Apps near 12 Lead ECG Challenge on the chart
Medical Paid, around #3.
Ratings
App Store, worldwide.
Review momentum
ⓘ How we measure thisReview 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 12 Lead ECG Challenge
From the 7 most recent App Store reviews in the US.
Users appreciate the app as a concise review tool for ECG interpretation, particularly valuing its clean interface and relevance to paramedic workflows. However, significant criticism exists regarding the lack of depth in explanations, absence of quiz features, and technical bugs affecting image zooming.
Mixed but leaning positive (71% of recent reviews give 4–5 stars). People like it for its features and content. Recent reviews are more negative than earlier ones.
What people like
- Features & content: “Great ECG's that will give you a great study tool”
About 12 Lead ECG Challenge
Sharpen your ECG interpretation skills with 12-Lead ECG Challenge—the ultimate tool for EMS providers, nurses, and physicians. Created by Tom Bouthillet, renowned ECG expert and blogger, this app delivers 180 real-world 12-lead ECGs to help you build accuracy, speed, and confidence in identifying critical cardiac conditions.
Key Features:
• Real patient cases with clinically obtained 12-leads alongside actual patient complaints.
• Wide range of pathologies, including acute STEMI, STEMI mimics, electrolyte imbalances, and more.
• Interactive learning with zoom and move functionality for easy ECG examination on phones, tablets, and computers.
• Expert explanations with detailed rationale and superimposed highlights to break down key findings.
• Customized practice with options to review 5, 10, or 20 cases at a time and exclude mastered ECGs for efficient study.
Perfect for cath lab activation teams, EMS, emergency medicine, and cardiology professionals, this app ensures you're prepared for high-stakes, real-world decisions.
Download now and take your ECG interpretation to the next level!
