EZ-EKG is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. It is for general wellness and informational use. Talk to a clinician about anything that concerns you.

See your heart's signal live. Connect a Polar H10 chest strap and watch your ECG on a calibrated 25 mm/s grid, with heart rate, RR intervals and RMSSD updating beat by beat. Any Bluetooth heart-rate strap that reports RR intervals (Polar H9, Garmin HRM, Wahoo TICKR, CooSpo and others) works in RR mode for heart rate and HRV.

Record as long as you like. Recordings run in the background with a persistent notification, survive the screen turning off, and keep going through short Bluetooth dropouts (lost samples are marked, never spliced). Add markers with notes while you record. Every recording stores the raw signal.

Understand what you recorded. Scrub through the strip at 12.5, 25 or 50 mm/s. Every recording gets a summary: duration, mean and range of heart rate, RMSSD, SDNN, and how much of the signal was clean.

Your data is yours. Recordings stay on this phone. There is no account, no cloud, no analytics and no advertising. Export CSV with UNIX and local timestamps, or RR intervals as plain text that Kubios HRV and HRV Logger open directly.

EZ-EKG Pro is a single one-time purchase, never a subscription:
• PDF report on standard ECG paper (25 mm/s, 10 mm/mV) with a summary page, ready to print or send
• EDF+ export with beat and marker annotations, for EDFbrowser, Kubios Scientific and MNE
• WFDB export for PhysioNet tools and wfdb-python
• Full HRV panel: LF and HF bands with the spectrum, Poincaré plot, and a waveform quality timeline

Works with: Polar H10 (ECG, firmware 3.0.35 or later). RR-only mode: any strap that implements the Bluetooth Heart Rate Service. Requires Bluetooth Low Energy and Android 8.0 or later.

EZ-EKG is an independent app. Polar and H10 are trademarks of Polar Electro Oy, which is not affiliated with this app.