# ECG Guide

> Comprehensive ECG reference app with extensive examples and interpretation guidance. (iPhone/iPad app by WebMD.)

- Source: https://appshunter.io/ios/app/ecg-guide/id301027070 (this page in markdown: same URL + `.md`)
- Developer: [WebMD](https://appshunter.io/developer/295076332)
- Category: Medical
- Price: $0.99
- Rating: 3.60/5 from 8 App Store ratings · 132 written reviews indexed
- Age rating: 17+
- Requires: iOS 11.0 · 26 MB
- Languages: American English
- Released: 2008-12-31
- Data updated: 2026-08-23
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ecg-guide/id301027070/reviews.md

## What is ECG Guide?

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.

## Key features

- Over 200 high-resolution sample ECGs
- In-depth reference text on ECG interpretation
- Stepwise ECG Interpreter assistance
- Over 100 multiple-choice quiz questions
- Rapid Reference section for quick interpretation
- Clear descriptions of arrhythmias and findings
- Pediatric values included

## What do users think of ECG Guide?

Overall sentiment: positive

**Pros**

- 📚 Comprehensive ECG reference material and content
- 👍 Excellent for medical professionals (doctors, nurses, paramedics, residents)
- 🎯 Well-organized and easy-to-navigate interface
- 📊 Large library of high-quality sample ECG strips
- 🧠 Helpful quiz feature for testing knowledge
- 🔍 Accurate and thorough diagnostic criteria
- ⚡ Fast and stable performance
- 💰 Good value for the price
- 🎓 Great learning and reference tool for medical students
- 🖼️ Clear, zoomable ECG images with good detail

**Cons**

- ❌ Not suitable for general public/non-medical users
- 🎨 Outdated UI design and appearance
- 📱 Poor iPad compatibility
- 🔐 Requires email registration after purchase
- 💸 Separate purchase required for iPad version
- 🐛 Crashes on startup (older versions)
- 📖 Can be overwhelming for beginners
- 🔤 Grammar and spelling errors in content
- 📐 UI scaling issues on newer iPhone models
- ⚠️ Inconsistent ECG examples vs. text descriptions

**Commonly reported bugs**

- App crashes at startup
- Incompatible with iOS 4 (fixed in later updates)
- Incompatible with iOS 11 (64-bit update needed)
- UI appears blown-up and blurry on iPhone 6+
- Cannot exit ECG view when rotated sideways
- Crashes after OS 3.0 update
- Incorrect pricing display in some regions

**Most requested features**

- iPad support and optimization
- Highlight or circle abnormalities on ECG images
- Search functionality for finding specific content
- Customizable quiz difficulty levels
- ACLS algorithms integration
- Pediatric reference tables and criteria
- Arrows and annotations on ECG samples
- Corrected QT calculator
- Alternate lead placement information (Fontane, Brugada)
- Notes and favorites functionality
- Camera integration to analyze ECG photos
- Device synchronization between iPhone and iPad
- More heart block examples
- Smoother landscape/portrait transitions

## Recent user reviews (10 of 132)

All indexed reviews: https://appshunter.io/ios/app/ecg-guide/id301027070/reviews.md

### 5/5 — Good reference app

*2026-02-13, version 6.1*

This is an excellent ECG reference. It won’t teach you how to read an ECG - that’s not the purpose. It IS a great reference for criteria you might not use every day such as voltage criteria for LVH. Ignore the low ratings - they all appear to be people who misunderstood the purpose of the app and are annoyed at their mistake, not users with functional concerns.

### 3/5 — Not for normal public- for medical personnel only

*2021-11-19, version 6.1*

I wanted to interpret my ECG so I bought this app. It wasn’t saying anything about uploading ECG and interpreting it. So I got confused. After I bought it’s just like medical booklet for ECG which normal people won’t understand at all. So app is not bad but they need to clearly say about what exactly its for and it’s not for normal people.

### 5/5 — A cardiology resident’s best friend

*2021-11-14, version 6.1*

I am a Med/Peds rural ER provider.  This has helped me over the years.  Thorough and accurate! Plus it has a quiz function to test your knowledge.

### 1/5 — Kindly update the app for full screen. It looks ugly

*2021-07-25*

Update the app to support full screen. It looks ugly

### 3/5 — Needs diagram and video

*2019-04-27*

It's a nice app with lots of written info but very less well illustrated diagram to understand. This app needs some well labelled and  illustrated visual representation of the ecg, so that's it's easy to understand. Addition of video would be even better. So I suggest the developers to add illustrated diagrams and videos of ecg including samples.

### 5/5 — Excellent resource

*2019-02-08, version 6.1*

I’m an acute care NP working in a cardiology practice for twenty years. ECG interpretation is something I do multiple times each day. I like to have reference resources and I think I’ve tried most all of those available from the App Store. ECG Guide remains my go to for its accuracy and clarity.

### 1/5 — Please Update

*2018-06-09, version 6.0*

As a Physician Assistant I find it offensive PA is not one of the professional options listed when signing up for the app. I interpret EKG’s daily... I really wanted to try this app, but instead will be deleting it.

### 5/5 — Fantastic

*2018-02-28, version 6.0*

Best ecg app I’ve used so far. It’s excellent for every level of care provider that is responsible for 12-lead interpretations.

### 4/5 — App not updated for latest iPhone models.

*2017-05-15, version 5.0*

App itself is great with excellent content & examples.

The only significant drawback is that the app is still not updated to the latest iPhone models which has bigger screen size.

### 3/5 — Needs an update

*2017-04-04, version 5.0*

Good app but it needs to be updated to 64 bit otherwise it will no longer function in iOS 11.

## Frequently asked questions about ECG Guide

### What does the ECG Guide app do?

The ECG Guide app serves as a comprehensive reference tool for interpreting electrocardiograms (ECGs). It provides over 200 high-quality ECG examples, detailed explanations of various ECG findings, and stepwise assistance to help users interpret complex readings.

### What are the key features of the ECG Guide app?

Key features include a vast library of over 200 sample ECGs, in-depth reference text covering rate, rhythm, axis, and more, an ECG Interpreter for stepwise analysis, a Rapid Reference section for quick interpretation, and over 100 quiz questions to test knowledge. It also includes pediatric values.

### How much does the ECG Guide app cost?

The ECG Guide app is a paid application. The exact price can be found on the App Store. There are no advertisements or in-app purchases mentioned, indicating a one-time purchase for full access.

### Who is the ECG Guide app intended for?

This app is designed for practicing physicians, medical trainees, nurses, paramedics, and medical students. It functions as both a learning tool for those in training and a reliable reference for experienced interpreters of ECGs.

### What kind of ECG findings are covered in the app?

The app covers a wide range of ECG findings, including common and uncommon arrhythmias, ischemia, heart blocks, bradyarrhythmias, tachyarrhythmias, ventricular hypertrophy, atrial enlargement, and analysis of rate, rhythm, axis, P wave, QRS complex, ST segment, T wave, and QT interval.

## Version history (last 5 releases)

### 6.1 — 2019-01-30

- UI updates to new QxMD branding
- update to improve layout on iPhone X devices

### 6.0 — 2017-06-14

- updated for iOS 11

### 5.0 — 2013-12-03

- updated for iOS7
- UI updates
- bug fixes

### 4.6 — 2013-03-06

- updated for iPhone 5 and all retina displays!
- UI updates
- bug fixes

### 4.4 — 2010-10-05

Bug fixes
Enhanced version number

Learn more about our apps for iPhone, iPad, Android, and BlackBerry at www.QxMD.com.

Download 'Calculate by QxMD' - free decision support tool for the medical community.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*