# ECGsource

> ECG interpretation resource with diagnoses, criteria, images, and video tutorials. (iPhone/iPad app by ECGsource LLC.)

- Source: https://appshunter.io/ios/app/ecgsource/id377139093 (this page in markdown: same URL + `.md`)
- Developer: [ECGsource LLC](https://appshunter.io/developer/377139096)
- Category: Medical, Education
- Price: $0.99
- Rating: 3.00/5 from 8 App Store ratings · 15 written reviews indexed
- Age rating: 12+
- Requires: iOS 9.0 · 349 MB
- Languages: American English
- Released: 2010-06-19
- Data updated: 2026-09-06
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ecgsource/id377139093/reviews.md

## What is ECGsource?

**Excellent resource for ECG Criteria and Board Review!**

ECGsource (from the developers of the CathSource and EchoSource Apps) is a supplemental application to ECGsource.com, the largest online educational resource for electrocardiograms.  ECGsource has been developed for medical education and board review, and assists institutions in documenting trainee competency in electrocardiogram (ECG) interpretation.

ECGsource for the iPhone/iPad provides the following resources:
-> Full-List of Searchable ECG Diagnoses and Criteria
-> Over 65 High-Resolution Sample ECG Images
-> ECG Quiz (5-question demo of website's full content)
-> ECG Video Tutorials for Beginners (over 50 minutes of tutorial videos)

**ECG Criteria is an easily searchable rapid reference for more than 90 of the most common ECG diagnoses, including: Normal ECG, Incorrect Electrode Placement, Artifact, Atrial Enlargement, Sinus Rhythm, Sinus Arrhythmia, Bradycardia, Tachycardia, Sinus Arrest, Sinoatrial Exit Block, Atrial Premature Complexes, Atrial Tachycardia, Multifocal Atrial Tachycardia, Supraventricular Tachycardia, Atrial Flutter, Atrial Fibrillation, AV Junctional Rhythm/Tachycardia, Ventricular Premature Complexes, Ventricular Tachycardia, Accelerated Idioventricular Rhythm, Ventricular Fibrillation, AV Block, (1st Degree, 2nd Degree, and 3rd Degree), Wolff-Parkinson-White, AV Dissociation, Low Voltage, Axis Deviation, Electrical Alternans, Ventricular Hypertrophy, Complete and Incomplete Right Bundle Branch Block, Left Anterior Fascicular Block, Left Posterior Fascicular Block, Complete and Incomplete Left Bundle Branch Block, Non-specific Intraventricular Conduction Disturbance, Functional (Rate-Related) Aberrancy, Anterolateral Infarction (Age Recent or Probably Acute), Anterolateral Infarction (Age Indeterminate or Probably Old), Anterior or Anteroseptal Infarction (Age Recent or Probably Acute), Anterior or Anteroseptal Infarction (Age Indeterminate or Probably Old), Lateral Infarction (Age Recent or Probably Acute), Lateral Infarction (Age Indeterminate or Probably Old), Inferior Infarction (Age Recent or Probably Acute), Inferior Infarction (Age Indeterminate or Probably Old), Posterior Infarction (Age Recent or Probably Acute), Posterior Infarction (Age Indeterminate or Probably Old), Early Repolarization, Juvenile T Waves, Nonspecific ST and/or T Wave Abnormalities, ST and/or T Wave Abnormalities Suggesting Myocardial Ischemia, ST and/or T Wave Abnormalities Suggesting Myocardial Injury, ST and/or T Wave Abnormalities Suggesting Electrolyte Disturbances, ST and/or T wave Abnormalities Secondary to Hypertrophy, Prolonged Q-T Interval, Prominent U Waves, Digitalis Effect, Hyperkalemia, Hypokalemia, Hypercalcemia, Hypocalcemia, Secundum Atrial Septal Defect, Primum Atrial Septal Defect, Dextrocardia, Chronic Lung Disease, Acute Cor Pulmonale Including Pulmonary Embolism, Pericardial Effusion, Acute Pericarditis, Hypertrophic Cardiomyopathy, Central Nervous System Disorder, Myxedema, Hypothermia, Sick Sinus Syndrome, Brugada Syndrome, Ebstein's Anomaly, Atrial or Coronary Sinus Pacing, Ventricular Demand Pacemaker (VVI), Dual Chamber Pacemaker (DDD), and Pacemaker Malfunction.**

**ECG Video Tutorial section includes over 50 minutes of video tutorials designed to assist beginners learning electrocardiogram interpretation.  Tutorial topics include Understanding the Cardiac Conduction System, Understanding the Limb and Precordial Leads, Determining ECG Rate and Axis, Left Ventricular Hypertrophy, Bundle Branch Blocks, and ST-Segment Elevation.** 

Visit us online at ECGsource.com for more information.

## Key features

- Searchable ECG diagnoses and criteria
- High-resolution sample ECG images
- ECG quiz (demo)
- Video tutorials for beginners
- Board review preparation

## Chart rankings

- #36 in Top Paid · Medical (US App Store)

## Recent user reviews (10 of 15)

All indexed reviews: https://appshunter.io/ios/app/ecgsource/id377139093/reviews.md

### 1/5 — Don’t buy!

*2022-05-28*

I bought this with the assumption that it was an on-the-go companion to the website. No! It is geared toward new learners and is not helpful for cardiology boards.

### 1/5 — Don’t download

*2021-07-16*

The bank of ECGs from the website IS NOT AVAILABLE on the app. All the app has are examples of each ECG criterion. You can’t actually work any ECGs. I should have known something was fishy when I have already payed for a subscription to the website and had to pay again to download the app.

### 5/5 — Great resource!!

*2014-10-19*

Best app I ever bought!! I have used many pocket references and none has been as user friendly and precise yet so easily accessible!! Great work!

### 4/5 — ECGSOURCE

*2014-08-31*

I already purchased this app in my iPad, why I should pay again to download it for my iPhone?!

### 5/5 — Awesome 12 lead app!

*2014-02-13*

This is of the best 12 lead ekg apps, if not the best, out there. It has a very useful library of actual patient ekgs including brief h&p's. If you're only going to buy on 12 lead app, this is the one for you.

### 2/5 — So-so

*2012-07-26*

I am an experienced paramedic and ALS instructor.  I picked up this program hoping to expand my library of ekg strips for when i teach as some are difficult to come by even on a generator.  However i find the ecg notes are pretty good. Ut the actual ecg strips are unimpressive and not very typical in appearance for what they are meant to describe.  The creator of the program fails to realize that just because a strip meets the technical diagnosis doesn't mean it is good example to show everyone else.  Therefore i am disappointed but thankful it didn't cost much.

### 1/5 — Don't buy for quiz

*2012-06-11*

Waste of money.  Quiz only contains 5 ECGs.  Good information but nothing I need in an app.

### 5/5 — Favorite ECG app

*2011-07-08*

Recommend highly. Also recommend "cath source" for anybody involved in cath lab.

### 4/5 — useful ecg notes

*2011-07-02*

good app.but no image about ventricular parasystole. why ?a little sad

### 2/5 — Good info, BUT..

*2010-10-06*

Only 5 sample ECGs in the quiz.

## Frequently asked questions about ECGsource

### What is ECGsource?

ECGsource is a medical education app designed for board review and assisting in electrocardiogram interpretation. It offers a searchable database of ECG diagnoses and criteria, sample images, and video tutorials.

### Who developed ECGsource?

ECGsource is developed by ECGsource LLC, the same team behind CathSource and EchoSource Apps, which are also educational resources for medical professionals.

### What kind of content does ECGsource offer?

The app includes a full list of searchable ECG diagnoses and criteria, over 65 high-resolution sample ECG images, and more than 50 minutes of video tutorials for beginners.

### Is ECGsource available on Android?

Based on the provided data, ECGsource is available for iPhone and iPad. It supports iOS devices.

### How much does ECGsource cost?

ECGsource is a paid application, priced at $0.99. This one-time purchase grants access to its ECG resources.

### How often is ECGsource updated?

The app was last updated on February 20, 2018, with the latest version being 3.4. Users can expect updates to maintain compatibility and potentially add new content.

### What is the age rating for ECGsource?

ECGsource has an age rating of 12+. This indicates it is suitable for users aged 12 and above, reflecting its educational and medical content.

### Does ECGsource have ads?

No, ECGsource does not contain advertisements. As a paid application, it provides an ad-free experience for users.

## Version history (last 5 releases)

### 3.4 — 2018-02-20

This update from Apple will improve the functionality of this app. No new features are included.

- iOS 9 compatibility
- Implemented Autolayout to address screen size and rotation issues throughout the app
- Fixed a bug where video files would not play audio
- Card table view style
- Conversion to latest Swift

### 3.3 — 2014-10-17

Updated compatibility for iOS 7.1+

### 3.2 — 2013-06-12

Minor bug fixes

### 3.1 — 2013-02-06

Added ECG Video Tutorial section, which includes over 50 minutes of video tutorials designed to assist beginners learning electrocardiogram interpretation.  Tutorial topics include Understanding the Cardiac Conduction System, Understanding the Limb and Precordial Leads, Determining ECG Rate and Axis, Left Ventricular Hypertrophy, Bundle Branch Blocks, and ST-Segment Elevation.

### 2.3 — 2011-03-01

Added electrocardiograms for hypercalcemia, pulmonary embolism, and apical hypertrophic cardiomyopathy
Visual enhancements for both portrait and landscape views

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## More apps by ECGsource LLC

- [CathSource](https://appshunter.io/ios/app/cathsource/id420847275)
- [EchoSource](https://appshunter.io/ios/app/echosource/id532460804)

All apps by ECGsource LLC: https://appshunter.io/developer/377139096

## Related topics

[ecgsource](https://appshunter.io/ios/topics/ecgsource)

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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 2026-09-06.*