# ECG Test for Doctors vs arrhythmia

The clearest difference is rating: ECG Test for Doctors at 4.7 against arrhythmia's 4.1. ECG Test for Doctors also leads on monetization model (free with in-app purchases vs subscription) and review sentiment (81% vs 44%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ECG Test for Doctors sells 1 one-off in-app purchase and arrhythmia sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ECG Test for Doctors holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 395 and 113 respectively. Written reviews point the same way: 81% of ECG Test for Doctors's written reviews are positive against 44% of arrhythmia's.

ECG Test for Doctors ships an update monthly, arrhythmia every 3 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ECG Test for Doctors | arrhythmia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (395 ratings)](https://appshunter.io/ios/app/ecg-test-for-doctors/id757666618/reviews)** | [4.1 (113 ratings)](https://appshunter.io/ios/app/arrhythmia/id996560473/reviews) |
| Number of ratings | **395** | 113 |
| Positive reviews | **80.8% of reviews** | 43.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 69 MB | 159 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 12+ | 17+ |
| Developer | [WMS, Inc](https://appshunter.io/developer/471623357) | [Single Sail Software, LLC](https://appshunter.io/developer/359715495) |

## What reviewers say

### ECG Test for Doctors

[App page](https://appshunter.io/ios/app/ecg-test-for-doctors/id757666618)

Enhance your ECG interpretation skills with a vast library of real patient cases. This app offers detailed ECG recordings and interactive tests to challenge and improve your diagnostic abilities. Ideal for medical professionals and students seeking to build a strong cardiology foundation.

**Highlights:** 1000+ real patient ECG samples, Static images and real-time monitor, Interactive interpretation tests, Detailed wave analysis, Covers numerous ECG findings, Challenging case scenarios

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG Pro Bundle | $9.99 | one-time |

**What reviewers like**

- 👍 Great practice
- 👍 Helpful study tool
- 👍 Challenging and keeping you up with the skills needed
- 👍 Recommended for any junior cardiologists
- 👍 Good for medics needing practice in ECG interpretations

**What reviewers complain about**

- 🐛 Incorrect interpretations
- 🐛 Lacks basic understanding of 12-lead ECG interpretation
- 🐛 Asks to identify infarct locations without 12-lead view
- 🐛 Doesn't tell you what ECG lead you're seeing
- 🐛 Provides limited options for answers

**Reported bugs**

- Incorrect interpretations of rhythms like bigeminy, trigeminy, and ST changes
- Answers not matching the ECG shown
- Crashes and freezes on login screen
- Incompatible with older devices

**Requested features**

- Add report feature for ECGs missing important findings
- Provide physiological explanations for rhythms
- Show the ECG lead being displayed
- Add more beginner-level ECG cases
- Provide full coding instead of just a few possible diagnoses


### arrhythmia

[App page](https://appshunter.io/ios/app/arrhythmia/id996560473)

Practice interpreting EKGs in lead II with realistic simulations. Choose rhythms to study or test your knowledge in a game mode. Ideal for healthcare professionals to hone their diagnostic skills.

**Highlights:** EKG interpretation practice, Lead II simulation, Study Mode with rhythm selection, Game Mode for random rhythm identification, Customizable rhythm sets, Realistic rhythm variations

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $19.99 | per year |
| Unlock All Rhythms (One-time Purchase) | $4.99 | one-time |

**What reviewers like**

- 👍 Great study tool for EKGs
- 👍 Helpful for understanding EKGs
- 👍 Good for practicing rhythm recognition
- 👍 Interactive and colorful design
- 👍 Dynamic testing

**What reviewers complain about**

- 👎 Immediately asks for paid version
- 👎 Missing common and important rhythms
- 👎 Rhythms are unrealistic
- 👎 Cannot try before signing up
- 👎 Clunky and slow horizontal scrolling

**Reported bugs**

- App no longer works after iOS update
- App does not work on Apple Watch

**Requested features**

- Add more common and important rhythms (torsades, WPW, STEMI, accelerated/tachycardic idioventricular, WAP, MAT)
- Option to read as a 12-lead instead of a single rhythm line
- Add variations to rhythms
- Add Left Bundle Branch Block
- Add a 12-lead option


## Frequently asked questions

### Is ECG Test for Doctors free?

ECG Test for Doctors is free to download, with in-app purchases available.

### Is arrhythmia free?

arrhythmia is free to download, with in-app purchases available.

### Which has better reviews, ECG Test for Doctors or arrhythmia?

ECG Test for Doctors is rated higher. ECG Test for Doctors averages 4.7 out of 5 from 395 ratings, while arrhythmia averages 4.1 from 113 ratings.

### Do ECG Test for Doctors or arrhythmia have ads?

Neither ECG Test for Doctors nor arrhythmia shows ads.

### Which is updated more often, ECG Test for Doctors or arrhythmia?

ECG Test for Doctors ships an update monthly, and arrhythmia every 3 weeks. Most recently, ECG Test for Doctors was updated on October 23, 2026 and arrhythmia on October 24, 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.*