ECG Logger for Polar H10 is a health and fitness app developed by Matti Mononen for Android devices. It is a full version app that is designed to read ECG data from Polar H10 heart rate sensor (v3.0.35 or later) and provide real-time monitoring and recording of heart rate, ECG, and RR intervals.

One of the key features of the app is its real-time viewer that provides a live preview of your ECG, heart rate, and RR intervals. Additionally, the app allows you to record your data in the background, even for lengthy recordings of several hours. You can explore your data by zooming and panning gestures and view your current and earlier ECG, heart rate, and R-R intervals in the same graph or individually.

The app also allows you to send a recording as an email attachment and delete, share, or open your recordings in CSV format in other applications like Excel. The app is not an official Polar product and is not approved or supported by Polar in any means. It is important to note that ECG Logger for Polar H10 is only compatible with Polar H10 heart rate sensors and is not intended to diagnose, treat, or prevent any disease or health condition.