ECG+ is a free application designed for iPhone users that enhances the ECG functionality of the Apple Watch. This educational tool allows users to review recorded ECGs and monitor heart rate variability (HRV), providing insights into their cardiovascular health. By integrating seamlessly with Apple Health, ECG+ maximizes the capabilities of the Apple Watch ECG feature, calculating the PQRST intervals to reveal a unique heartbeat signature, akin to a fingerprint.

In addition to ECG analysis, ECG+ tracks changes in HRV, which is widely recognized as an objective measure of physical readiness. It is important to note that ECG+ is not a diagnostic tool and does not provide medical services or advice. The app is intended for informational and educational purposes only, and users should seek professional medical care for any health concerns.