# EP Diagram — Electronic ECG ladder diagram

> Interactive tool for creating and analyzing electrocardiogram ladder diagrams. (iPhone/iPad app by EP Studios.)

- Source: https://appshunter.io/ios/app/ep-diagram/id1550836014 (this page in markdown: same URL + `.md`)
- Developer: [EP Studios](https://appshunter.io/developer/574231798)
- Category: Medical, Utilities
- Price: $4.99
- Age rating: 12+
- Requires: iOS 17.6 · 13 MB
- Languages: American English
- Released: 2021-04-17
- Data updated: 2026-09-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ep-diagram/id1550836014/reviews.md

## What is EP Diagram?

EP Diagram is a teaching and learning tool for the analysis of electrocardiograms using ladder diagrams.  Ladder diagrams are a classic method of analysing heart rhythms and conduction disturbances.  The ladder is divided into anatomic regions and lines are drawn indicating conduction.  EP Diagram goes much further than the traditional ladder diagram drawn by hand.  Using it you can easily and quickly draw publication quality ladder diagrams which are interactive, scrollable, and zoomable.  You can style these diagrams as you wish, have measurements, impulse origin, and block calculated automatically, and can edit and create your own ladders templates.  You can even add periods of fibrillation with just one finger tap.  Diagrams are automatically saved as files and can be shared with others.  EP Diagram will improve your understanding of cardiac arrhythmias.

## Key features

- Interactive ladder diagrams
- Automatic calculation of measurements
- Impulse origin and block calculation
- Customizable ladder templates
- Add fibrillation periods
- Publication-quality diagrams
- Shareable diagrams

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ep-diagram/id1550836014/reviews.md

### 5/5 — important teaching tool

*2021-08-22*

this is a great way to practice and learn ekg rhythm interpretation using Ladder diagrams

## Frequently asked questions about EP Diagram

### What is EP Diagram used for?

EP Diagram is a teaching and learning tool designed for analyzing electrocardiograms (ECG) using interactive ladder diagrams. It helps users understand heart rhythms and conduction disturbances more effectively.

### How does EP Diagram improve understanding of cardiac arrhythmias?

By allowing users to easily create and manipulate ladder diagrams, which visually represent conduction pathways, EP Diagram helps to clarify complex cardiac arrhythmias. Features like automatic calculations and the ability to add fibrillation periods further enhance comprehension.

### Can I create professional-looking diagrams with EP Diagram?

Yes, EP Diagram enables the creation of publication-quality ladder diagrams that are interactive, scrollable, and zoomable. You can style them as needed and even create your own templates.

### What platforms is EP Diagram available on?

EP Diagram is supported on Mac, iPhone, iPad, and iPod devices, offering a versatile experience across Apple's ecosystem.

### How often is EP Diagram updated?

The app was last updated on February 10, 2024, indicating active development and support from the developer, EP Studios.

### What is the age rating for EP Diagram?

EP Diagram has an age rating of 12+, making it suitable for a wide range of users interested in medical education.

### Does EP Diagram have ads?

No, EP Diagram does not contain advertisements, providing an uninterrupted learning experience for its users.

### What is the price of EP Diagram?

EP Diagram is available for a one-time purchase of $4.99.

## Version history (last 5 releases)

### 1.5.1 — 2026-08-06

Open files dialog opens at last directoy used

### 1.5.0 — 2026-07-21

- Add check for calibration before using tools requiring calibration
- Shrink periods to fit region if needed
- Diagram files reopen using last scale and offset

### 1.4.3 — 2026-07-04

Make Period duration control more user friendly

### 1.4.0 — 2026-06-19

New icon
Fixed rename diagram bug

### 1.3.0 — 2024-02-10

Fixed bug where deleting a region could result in a crash

## Apps similar to EP Diagram

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Blood Pressure Tracker SmartBP](https://appshunter.io/ios/app/blood-pressure-tracker-smartbp/id519076558) | 4.5 (59,011) | Free | Medical |
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| [Blood Pressure App: Log Diary](https://appshunter.io/ios/app/blood-pressure-app-log-diary/id1525183703) | 4.2 (99) | Free | Medical |
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## More apps by EP Studios

- [EP Mobile](https://appshunter.io/ios/app/ep-mobile/id574231795)
- [EP Coding](https://appshunter.io/ios/app/ep-coding/id836068604)
- [EP Calipers](https://appshunter.io/ios/app/ep-calipers/id982313078)
- [EP QTc](https://appshunter.io/ios/app/ep-qtc/id1393849228)
- [MorbidMeter](https://appshunter.io/ios/app/morbidmeter/id1582566530)

All apps by EP Studios: https://appshunter.io/developer/574231798

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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 2026-09-01.*