# epTools vs MCSAID

The clearest difference is price: MCSAID at Free against epTools's $19.99. epTools's advantage is update cadence (every 4 months vs every 40 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

MCSAID is free to download; epTools costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

epTools ships an update every 4 months, MCSAID every 40 months. The most recent releases landed on October 12, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | epTools | MCSAID |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.8 (519 ratings)](https://appshunter.io/ios/app/eptools/id430201878/reviews)** | — |
| Number of ratings | **519** | — |
| Positive reviews | 88.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 40 months |
| Monetization | Free | — |
| Size | 30 MB | 46 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Busy Being Born Solutions, LLC](https://appshunter.io/developer/430201881) | [Cardiology Apps LLC](https://appshunter.io/developer/1639925847) |

## What reviewers say

### epTools

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

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


### MCSAID

[App page](https://appshunter.io/ios/app/mcsaid/id6443740248)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is epTools free?

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

### Is MCSAID free?

MCSAID is free to download, with no in-app purchases.

### Do epTools or MCSAID have ads?

Neither epTools nor MCSAID shows ads.

### Which is updated more often, epTools or MCSAID?

epTools ships an update every 4 months, and MCSAID every 40 months. Most recently, epTools was updated on October 12, 2026 and MCSAID on September 12, 2026.

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