# epTools vs EP Calipers

The clearest difference is price: EP Calipers at $1.99 against epTools's $19.99. EP Calipers also leads on iOS requirement (14.0 vs 16.0). epTools's advantage is rating (4.8 vs 2.3) and review sentiment (88% vs 50%). On update cadence, ads, in-app purchases and chart position there is nothing between them.

epTools costs $19.99 and EP Calipers $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

epTools holds the better App Store score, 4.8 against 2.3. That said, the two scores are not equally well evidenced: epTools has 519 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 88% of epTools's written reviews are positive against 50% of EP Calipers's.

epTools ships an update every 4 months, EP Calipers every 3 months. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | epTools | EP Calipers |
| --- | --- | --- |
| Price | $19.99 | **$1.99** |
| Rating | **[4.8 (519 ratings)](https://appshunter.io/ios/app/eptools/id430201878/reviews)** | [2.3 (6 ratings)](https://appshunter.io/ios/app/ep-calipers/id982313078/reviews) |
| Number of ratings | **519** | 6 |
| Positive reviews | **88.2% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Paid |
| Best chart rank | #195 | **#186** |
| Size | 30 MB | 9 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| 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:** #195 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 Calipers

[App page](https://appshunter.io/ios/app/ep-calipers/id982313078)

**Currently charting:** #186 Top Paid · Medical (US App Store)

This medical app allows users to measure intervals and angles on electrocardiogram (ECG) images. It's designed for healthcare professionals to accurately analyze ECGs from photos or PDFs, aiding in calculations like heart rate and QT intervals.

**Highlights:** Measure ECG intervals, Measure ECG angles, Calculate mean heart rate, Determine corrected QT interval, Analyze ECG photos and PDFs, Supports Brugada syndrome beta angle measurement

**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 Calipers free?

EP Calipers costs $1.99, with no in-app purchases.

### Which has better reviews, epTools or EP Calipers?

epTools is rated higher. epTools averages 4.8 out of 5 from 519 ratings, while EP Calipers averages 2.3 from 6 ratings.

### Do epTools or EP Calipers have ads?

Neither epTools nor EP Calipers shows ads.

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

epTools ships an update every 4 months, and EP Calipers every 3 months. Most recently, epTools was updated on September 21, 2026 and EP Calipers on September 13, 2026.

### Which is more popular, epTools or EP Calipers?

epTools currently peaks at #195 in the App Store charts, and EP Calipers at #186. Chart position reflects recent download velocity rather than total install base.

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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.*