ECG Tracker+ EKG Reader HRV

ECG Tracker+ is now on Apple Watch. Take an ECG with the ECG app, then check the result on your wrist. Analysis stays private on your paired iPhone.

Your Apple Watch ECGs, analyzed on your iPhone by models we trained ourselves. No cloud. No accounts. No data leaves the device.

ECG Tracker+ imports your ECG recordings from the Health app and gives you a deeper read than the watch alone — sharper QT measurements, clearer rhythm context, and findings highlighted right on the waveform.

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OUR OWN ON-DEVICE ECG MODELS We spent weeks training a family of in-house ECG models on large, expert-annotated public datasets. Tuned to run fully on-device by harnessing the power of Apple Silicon, they bring sharper P, Q, R, S, T placement and cleaner QT measurements — especially on noisy Apple Watch traces where the previous pipeline used to back off.

NEW EVENTS WE NOW FLAG • Bigeminy and trigeminy — repeating premature-beat patterns • Possible VT run — three or more consecutive premature ventricular beats • Wide QRS / possible bundle branch block — when QRS duration ≥120 ms • T-wave inversion — negative T-wave polarity on the representative beat

Every finding appears on the library card and is highlighted directly on the waveform.

MEASUREMENTS THAT MATTER • HRV — rMSSD and SDNN, with trend comparisons over weeks and months • QT and QTc — multiple correction formulas, manual override when you need it • QRS duration, PR interval, RR interval • Heart rate ranges and signal quality scoring

TRENDS YOU CAN ACTUALLY READ Compare the last 30 days against the previous period. Spot drifts in heart rate, HRV, and QTc at a glance. Tap any data point to jump straight to that recording.

EVERYTHING STAYS ON YOUR IPHONE All analysis runs on-device. No cloud, no servers, no accounts. Your ECGs never leave your iPhone. Delete the app and the data goes with it.

EXPORT CLEAN PDF REPORTS Share a clinically-formatted PDF of any recording with your doctor — waveform, measurements, notes, and symptom tags all in one document.

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Download ECG Tracker+ and get more out of every ECG your Apple Watch records.

ECG Tracker+ is an informational measurement tool and is not a medical device. It does not provide medical advice, diagnosis, or treatment.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/