# ECG Books vs ECG Notes

ECG Books and ECG Notes both sit at 4.7 stars, but that hides the real split: 91% of ECG Books's written reviews are positive against 50% of ECG Notes's. ECG Books also leads on ads (none vs shown) and update cadence (monthly vs every 3 months). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. ECG Books sells 10 one-off in-app purchases and ECG Notes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for ECG Books against 4.7 for ECG Notes. That said, the two scores are not equally well evidenced: ECG Books has 156 ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 91% of ECG Books's written reviews are positive against 50% of ECG Notes's.

ECG Books ships an update monthly, ECG Notes every 3 months. The most recent releases landed on September 23, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | ECG Books | ECG Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (156 ratings)](https://appshunter.io/ios/app/ecg-books/id739003604/reviews) | [4.7 (12 ratings)](https://appshunter.io/ios/app/ecg-notes-quick-look-up-ref/id1146393355/reviews) |
| Number of ratings | **156** | 12 |
| Positive reviews | **90.9% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 44 MB | 46 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [WMS, Inc](https://appshunter.io/developer/471623357) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## What reviewers say

### ECG Books

[App page](https://appshunter.io/ios/app/ecg-books/id739003604)

Access a vast library of real-world ECG recordings demonstrating various cardiac abnormalities. Learn to interpret ECG findings with concise explanations and detailed case studies. Practice with over 1000 abnormal ECG cases in movie or report modes.

**Highlights:** View real-time ECG recordings, Concise explanations of abnormalities, 1000+ abnormal ECG cases, Movie mode with heartbeat sounds, Report mode for measurement and sharing, Detailed information on causes, diagnosis, and treatment

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AF With RVR Book | $0.99 | one-time |
| Atrial Flutter Book | $1.99 | one-time |
| Long QT Prolongation Book | $1.99 | one-time |
| Pace Maker Book | $1.99 | one-time |
| First-degree Atrioventricular Book | $1.99 | one-time |
| II Degree AV Block Book | $1.99 | one-time |
| ST Elevation Book | $1.99 | one-time |
| Pulmonary Heart Disease Book | $2.99 | one-time |
| VT Book | $2.99 | one-time |
| ECG BOOKS PRO BUNDLE | $9.99 | one-time |

**What reviewers like**

- 👍 Detailed ECG explanations
- 🚀 Comprehensive ECG library
- 🤓 Helpful for learning and refreshing ECG knowledge
- 💡 Live ECG rhythm demonstrations
- 🎓 Great resource for medical/nursing students

**What reviewers complain about**

- 🐛 Occasional crashes or compatibility issues
- 💰 Paid version required to unlock full content
- 🔍 Could use more in-depth explanations for beginners
- 🤔 Some typos or minor issues in descriptions

**Reported bugs**

- Login/sync issues between devices
- Compatibility problems with newer iOS versions

**Requested features**

- Add more ECG cases and examples
- Include a quiz or practice mode
- Improve font size and readability
- Introduce a free trial or more sample content


### ECG Notes

[App page](https://appshunter.io/ios/app/ecg-notes-quick-look-up-ref/id1146393355)

This pocket guide offers a quick reference for ECG interpretation and management, covering basics, 12-lead ECGs, ACLS, CPR, and emergency medications. It includes over 100 ECG strips and practice questions, with content updated to the latest guidelines. No internet connection is needed after initial download.

**Highlights:** 125 ECG rhythm strips, Comprehensive coverage: basics, ECG, ACLS, PALS, meds, CPR, CPR algorithms in tabular format, Test Yourself ECG strips with real-life arrhythmias, Clinical Tips and PALS coverage, SmartSearch technology for quick look-up, Offline content access

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG Notes-Ed.4 | $34.99 | one-time |


## Frequently asked questions

### Is ECG Books free?

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

### Is ECG Notes free?

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

### Which has better reviews, ECG Books or ECG Notes?

ECG Books and ECG Notes are both rated 4.7 out of 5 on the App Store, from 156 and 12 ratings respectively.

### Do ECG Books or ECG Notes have ads?

ECG Notes shows ads; ECG Books does not.

### Which is updated more often, ECG Books or ECG Notes?

ECG Books ships an update monthly, and ECG Notes every 3 months. Most recently, ECG Books was updated on September 23, 2026 and ECG Notes on August 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.*