# ECG Dongle vs QT ECG

The clearest difference is review sentiment: QT ECG at 100% against ECG Dongle's 29%. ECG Dongle's advantage is rating (3.7 vs 3.4) and iOS requirement (9.0 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ECG Dongle holds the better App Store score, 3.7 against 3.4. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews complicate that: 29% of ECG Dongle'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.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | ECG Dongle | QT ECG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ecg-dongle/id1058808873/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/qt-ecg/id1457528665/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | 29.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 17 MB | 58 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nordavind](https://appshunter.io/developer/637520063) | [QT Medical, Inc.](https://appshunter.io/developer/1074095246) |

## What reviewers say

### ECG Dongle

[App page](https://appshunter.io/ios/app/ecg-dongle/id1058808873)

Measure your heart rate and view it in real-time. Send your results to a cardiologist for recommendations and monitor your health. No prior medical or technical knowledge is required to use this application.

**Highlights:** Heart rate measurement, Real-time viewing, Send results to cardiologist, Health monitoring, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Dongle free?

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

### Is QT ECG free?

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

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

ECG Dongle is rated higher. ECG Dongle averages 3.7 out of 5 from 3 ratings, while QT ECG averages 3.4 from 5 ratings.

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

Neither ECG Dongle nor QT ECG shows ads.

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

ECG Dongle ships an update every 2 months, and QT ECG every 2 months. Most recently, ECG Dongle was updated on November 2, 2026 and QT ECG on November 2, 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.*