# QT ECG vs Watch ECG Pro

The clearest difference is review sentiment: QT ECG at 100% against Watch ECG Pro's 25%. QT ECG also leads on in-app purchases (none vs 3) and ads (none vs shown). Watch ECG Pro's advantage is rating (4.4 vs 3.4) and ratings volume (64 vs 5). On price, update cadence and device support there is nothing between them.

Both are free to download. Watch ECG Pro sells 3 in-app purchases, starting at $6.99 per 7 days. QT ECG asks for nothing beyond the download.

Watch ECG Pro holds the better App Store score, 4.4 against 3.4. That said, the two scores are not equally well evidenced: Watch ECG Pro has 64 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 100% of QT ECG's written reviews are positive against 25% of Watch ECG Pro'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. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | QT ECG | Watch ECG Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/qt-ecg/id1457528665/reviews) | **[4.4 (64 ratings)](https://appshunter.io/ios/app/watch-ecg-pro-deep-analysis/id1542744328/reviews)** |
| Number of ratings | 5 | **64** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 58 MB | 102 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [QT Medical, Inc.](https://appshunter.io/developer/1074095246) | [Shenzhen Plus1Health Technology Co., Ltd](https://appshunter.io/developer/372583780) |

## What reviewers say

### 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


### Watch ECG Pro

[App page](https://appshunter.io/ios/app/watch-ecg-pro-deep-analysis/id1542744328)

Monitor your heart rhythm and analyze ECG data from wearables or patch recorders. Receive detailed feedback and practical tips for improving your physical health. This app is for informational purposes and not a substitute for professional medical advice.

**Highlights:** Analyze ECG from Apple Watch or patch recorder, Measure and analyze pulse rhythm with phone camera, Real-time ECG data capture via Bluetooth, Detect cardiac rhythm, AFib, tachycardia, bradycardia, Export PDF ECG analysis reports, Track heart rate and provide health tips

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features 1 Week | $6.99 | per 7 days |
| Premium Features For 1 Year | $49.99 | per year |
| Premium Features (Permanent) | $129.99 | one-time |


## Frequently asked questions

### Is QT ECG free?

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

### Is Watch ECG Pro free?

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

### Which has better reviews, QT ECG or Watch ECG Pro?

Watch ECG Pro is rated higher. QT ECG averages 3.4 out of 5 from 5 ratings, while Watch ECG Pro averages 4.4 from 64 ratings.

### Do QT ECG or Watch ECG Pro have ads?

Watch ECG Pro shows ads; QT ECG does not.

### Which is updated more often, QT ECG or Watch ECG Pro?

QT ECG ships an update every 2 months, and Watch ECG Pro every 2 months. Most recently, QT ECG was updated on November 2, 2026 and Watch ECG Pro on November 3, 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.*