# Spaulding ECG vs Watch ECG Pro

The clearest difference is rating: Spaulding ECG at 5.0 against Watch ECG Pro's 4.4. Spaulding ECG also leads on in-app purchases (none vs 3) and ads (none vs shown). Watch ECG Pro's advantage is ratings volume (63 vs 1). 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. Spaulding ECG asks for nothing beyond the download.

Spaulding ECG holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Watch ECG Pro has 63 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Spaulding ECG | Watch ECG Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spaulding-ecg/id919556580/reviews)** | [4.4 (63 ratings)](https://appshunter.io/ios/app/watch-ecg-pro-deep-analysis/id1542744328/reviews) |
| Number of ratings | 1 | **63** |
| Positive 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 | 8 MB | 102 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Spaulding Clincal Research, LLC](https://appshunter.io/developer/919556579) | [Shenzhen Plus1Health Technology Co., Ltd](https://appshunter.io/developer/372583780) |

## What reviewers say

### Spaulding ECG

[App page](https://appshunter.io/ios/app/spaulding-ecg/id919556580)

This application allows users to perform one-click ECGs using their iOS device and a compatible external device. It streams real-time cardiac electrical output for personal monitoring or professional analysis, enabling easy sharing of results with physicians.

**Highlights:** One-click ECG performance, Real-time cardiac output streaming, Share ECG results with physicians, Professional real-time analysis, iOS device integration

**Features:** macOS Compatibility

**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 Spaulding ECG free?

Spaulding 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, Spaulding ECG or Watch ECG Pro?

Spaulding ECG is rated higher. Spaulding ECG averages 5.0 out of 5 from 1 ratings, while Watch ECG Pro averages 4.4 from 63 ratings.

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

Watch ECG Pro shows ads; Spaulding ECG does not.

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

Spaulding ECG ships an update every 2 months, and Watch ECG Pro every 2 months. Most recently, Spaulding ECG was updated on September 30, 2026 and Watch ECG Pro on October 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.*