# EF vs ECG+ | Your Watch ECG Reader

The clearest difference is in-app purchases: EF at none against ECG+ | Your Watch ECG Reader's 5. EF also leads on iOS requirement (12.0 vs 18.0). ECG+ | Your Watch ECG Reader's advantage is update cadence (every 10 days vs every 48 months) and chart position (#24 vs unranked). On price, ads and device support there is nothing between them.

Both are free to download. ECG+ | Your Watch ECG Reader sells 5 in-app purchases, starting at $9.99 per month. EF asks for nothing beyond the download.

EF ships an update every 48 months, ECG+ | Your Watch ECG Reader every 10 days. The most recent releases landed on October 1, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | EF | ECG+ | Your Watch ECG Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2.5K ratings)](https://appshunter.io/ios/app/ecg-plus-your-watch-ecg-reader/id1567047859/reviews)** |
| Number of ratings | — | **2.5K** |
| Positive reviews | — | 64.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#24** |
| Size | 22 MB | 77 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 17+ |
| Developer | [Keiji Matsui](https://appshunter.io/developer/365287272) | [Heartworks Pty Ltd](https://appshunter.io/developer/1783326256) |

## What reviewers say

### EF

[App page](https://appshunter.io/ios/app/ef-ejection-fraction/id1342185936)

**Features:** macOS Compatibility

**In-app purchases:** none


### ECG+ | Your Watch ECG Reader

[App page](https://appshunter.io/ios/app/ecg-plus-your-watch-ecg-reader/id1567047859)

**Currently charting:** #24 Top Grossing · Medical, #198 Top Free · Medical (US App Store)

This app enhances your Apple Watch ECG recordings by calculating PQRST to reveal your unique heartbeat signature. It also monitors Heart Rate Variability (HRV), an objective measure of physical readiness, and integrates with Apple Health.

**Highlights:** ECG recording analysis, Heart Rate Variability (HRV) tracking, PQRST calculation, Heartbeat signature analysis, Apple Health integration

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG+ PREMIUM | $9.99 | per month |
| ECG+ PREMIUM | $59.99 | per year |
| ECG+ PREMIUM Family | $79.99 | per year |
| ECG+ PREMIUM (Lifetime) | $199.99 | one-time |
| ECG+ PREMIUM Family (Lifetime) | $299.99 | one-time |

**What reviewers like**

- 🚀 Accurate ECG readings
- 👍 Helpful in monitoring heart health
- 📊 Provides useful insights and data
- 🤖 Impressive algorithms and analysis

**What reviewers complain about**

- 🐛 Inconsistent performance and reliability
- 💰 Expensive subscription model
- 🤔 Limited functionality in free version
- ⚠️ Compatibility issues with older devices

**Reported bugs**

- App not working or crashing
- Inability to set up or connect with Apple Watch
- Inaccurate readings or interpretations

**Requested features**

- Percentage of Long QT interval
- More customization options
- Ability to export data
- Improved user guidance and documentation


## Frequently asked questions

### Is EF free?

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

### Is ECG+ | Your Watch ECG Reader free?

ECG+ | Your Watch ECG Reader is free to download, with in-app purchases available.

### Do EF or ECG+ | Your Watch ECG Reader have ads?

Neither EF nor ECG+ | Your Watch ECG Reader shows ads.

### Which is updated more often, EF or ECG+ | Your Watch ECG Reader?

EF ships an update every 48 months, and ECG+ | Your Watch ECG Reader every 10 days. Most recently, EF was updated on October 1, 2026 and ECG+ | Your Watch ECG Reader on October 17, 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.*