# ECG Notes vs QT ECG

The clearest difference is review sentiment: QT ECG at 100% against ECG Notes's 50%. QT ECG also leads on in-app purchases (none vs 1) and ads (none vs shown). ECG Notes's advantage is rating (4.7 vs 3.4) and iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. ECG Notes sells 1 one-off in-app purchase. QT ECG asks for nothing beyond the download.

ECG Notes holds the better App Store score, 4.7 against 3.4. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews complicate that: 50% of ECG Notes's written reviews are positive against 100% of QT ECG's, so the app with the better star average is not the one people write more warmly about.

ECG Notes ships an update every 3 months, QT ECG every 2 months. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ECG Notes | QT ECG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/ecg-notes-quick-look-up-ref/id1146393355/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/qt-ecg/id1457528665/reviews) |
| Number of ratings | **12** | 5 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 46 MB | 58 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [QT Medical, Inc.](https://appshunter.io/developer/1074095246) |

## What reviewers say

### 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 |


### QT ECG

[App page](https://appshunter.io/ios/app/qt-ecg/id1457528665)

Record and transmit high-quality 12-lead ECGs for physician interpretation. This app connects to compatible smart devices via Bluetooth to display and send ECG data to a secure cloud. An account with the developer is required for use.

**Highlights:** Hospital-quality 12-lead ECG recording, Bluetooth connectivity to smart devices, HIPAA/GDPR-compliant cloud transmission, Physician interpretation ready, High-quality ECG display

**In-app purchases:** none


## Frequently asked questions

### Is ECG Notes free?

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

### Is QT ECG free?

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

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

ECG Notes is rated higher. ECG Notes averages 4.7 out of 5 from 12 ratings, while QT ECG averages 3.4 from 5 ratings.

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

ECG Notes shows ads; QT ECG does not.

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

ECG Notes ships an update every 3 months, and QT ECG every 2 months. Most recently, ECG Notes was updated on October 21, 2026 and QT ECG on October 15, 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.*