ECG Guide
by WebMD
- Medical
- Paid
- Zombie
- Rating
- 3.6
- 8 ratings · US storefront
- Top 93%among 65 Medical apps
- Last update
- Jan 30, 2019
- Version 6.1
- Size
- 27 MB
- Category
- Medical
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
The most comprehensive ECG app in the iPhone App Store - over 200 examples of common and uncommon ECGs
iPad version? bit.ly/ECGiPad or search iTunes "ECG Guide iPad"
Praise for the ECG Guide:
"The best ECG app currently available."
-iMedicalApps.com
"Core Medical App."
- Georgetown Medical School.
“This brand-new gem features concise explanations with ample high-quality ECG examples...”
- American College of Emergency Physicians
“...a 5 star application”
- User review
“...a must have application for doctors, residents and medical students.”
- User review
Succinct yet authoritative, this ECG reference is a critical companion for practicing physicians, medical trainees, nurses and paramedics. It is designed as a learning tool for those still training as well as a reliable reference for more experienced interpreters of ECGs.
*********
Features:
- Full reference text that includes in-depth information on topics such as:
- Approach to ECG Interpretation
- Analysis of rate, rhythm, axis, P wave, QRS complex, ST segment, T wave and QT interval
- Ventricular hypertrophy and atrial enlargement
- Assessment of ischemia
- Approach to arrhythmia
- Bradyarrythmias and tachyarrythmias, Heart block, and much more…
(content based on national guidelines 2009 AHA/ACCF/HRS Recommendations for the standardization and interpretation of the electrocardiogram)
- The largest ECG library available on the iPhone with over 200 high resolution sample ECGs with common and complex findings for easy reference
- ECG Interpreter - Stepwise assistance with ECG interpretation. Helps create differential diagnosis based on simple to assess ECG features.
- Over 100 multiple-choice quiz questions to test your knowledge
- Rapid Reference section - one tap takes you to 11 summary pages used to confidently interpret ECGs
- Clear descriptions of both common and complex arrhythmias and ECG findings
- Review etiology and differential diagnosis of common and complex arrhythmias and ECG findings
- Pediatric values included
Compiled and written by Jason Andrade, MD, FRCPC.
What’s new
Release notes for the latest version, as written by the developer.
- UI updates to new QxMD branding
- update to improve layout on iPhone X devices
Rank history
Daily position in the Grenada charts. #1 is at the top.
- Best rank
- #2
- Current rank
- #3
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
75/100
Not flagged as small & simple
- Developer size0% · 25
Developer: 7 apps on the charts
- Audience size100% · 20
Ratings: 8
- App size100% · 10
Size: 27 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #1, 143 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 6.1LatestReleased Jan 30, 2019