# epTools vs EP Diagram

The clearest difference is price: EP Diagram at $4.99 against epTools's $19.99. EP Diagram also leads on update cadence (every 6 weeks vs every 4 months) and review sentiment (100% vs 88%). epTools's advantage is chart position (#23 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

epTools costs $19.99 and EP Diagram $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

epTools ships an update every 4 months, EP Diagram every 6 weeks. The most recent releases landed on September 25, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | epTools | EP Diagram |
| --- | --- | --- |
| Price | $19.99 | **$4.99** |
| Rating | **[4.8 (519 ratings)](https://appshunter.io/ios/app/eptools/id430201878/reviews)** | — |
| Number of ratings | **519** | — |
| Positive reviews | 88.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | **Free** | Paid |
| Best chart rank | **#23** | — |
| Size | 30 MB | 15 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 17+ | 12+ |
| Developer | [Busy Being Born Solutions, LLC](https://appshunter.io/developer/430201881) | [EP Studios](https://appshunter.io/developer/574231798) |

## What reviewers say

### epTools

[App page](https://appshunter.io/ios/app/eptools/id430201878)

**Currently charting:** #23 Top Paid · Medical (US App Store)

This app provides a suite of tools for diagnosing and managing cardiac rhythm disorders. It offers algorithms for localizing arrhythmias, differentiating conditions like WPW from FVF, and assessing disease risks. Users can visualize progress, save analysis paths, and access cited scientific references.

**Highlights:** Arrhythmia localization algorithms, Differentiate WPW from FVF, Atrial tachycardia localization, Ventricular tachycardia localization, Disease assessment criteria, Save decision path images, Access scientific references

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Very useful for EP issues
- 👍 Great for remembering rules
- 👍 Gold standard EP app
- 👍 Helpful for decision making

**What reviewers complain about**

- 😐 Not as great as expected
- 😐 Needs more explanations

**Reported bugs**

- Crash problem fixed

**Requested features**

- Add CAAP-AF
- Better tools for PVC localization
- More explanations in each pathway
- German translation
- Links to papers with algorithms


### EP Diagram

[App page](https://appshunter.io/ios/app/ep-diagram/id1550836014)

This app simplifies the analysis of electrocardiograms using interactive ladder diagrams. It allows for quick creation of publication-quality diagrams with automatic calculations for measurements and impulse origins. Enhance your understanding of cardiac arrhythmias with this advanced digital tool.

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is epTools free?

epTools costs $19.99, with no in-app purchases.

### Is EP Diagram free?

EP Diagram costs $4.99, with no in-app purchases.

### Do epTools or EP Diagram have ads?

Neither epTools nor EP Diagram shows ads.

### Which is updated more often, epTools or EP Diagram?

epTools ships an update every 4 months, and EP Diagram every 6 weeks. Most recently, epTools was updated on September 25, 2026 and EP Diagram on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*