# Polar Sensor Logger

> Log and graph biosignals (HR/ECG/ACC/PPG/etc..) from Polar H10 & OH1 sensors

Canonical page: [https://chrome-stats.com/d/com.j\_ware.polarsensorlogger](https://chrome-stats.com/d/com.j_ware.polarsensorlogger)

## Overview

- **ID:** `com.j_ware.polarsensorlogger`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Jukka Happonen
- **Category:** HEALTH\_AND\_FITNESS
- **Downloads:** 63,203
- **Rating:** 3.84 / 5 (290 ratings)
- **Version:** 0.31
- **Last updated:** 2024-09-18
- **First published:** 2019-06-03
- **Publisher country:** FI
- **Size:** 16 MB
- **Data as of:** 2026-09-13
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.j_ware.polarsensorlogger)
- **Privacy policy:** [https://j-ware.com/polarsensorlogger/privacy\_policy.html](https://j-ware.com/polarsensorlogger/privacy_policy.html)

## Description

Polar Sensor Logger is a powerful Chrome extension for logging and graphing raw biosignals such as heart rate (HR), ECG, accelerometer (ACC), and photoplethysmogram (PPG) data from Polar H10, OH1, and Verity Sense sensors using the Polar SDK. It allows users to save sensor data files locally, share via email or Google Drive, and forward data using MQTT. 

Compatible with various Polar sensor models and firmware (H10, OH1, Verity Sense, H7, H9), the extension supports in-depth biosignal recording including HR, RR intervals, ECG at ~130 Hz, PPG, accelerometer, gyroscope, and magnetometer data. Designed with privacy in mind, the app does not collect user data and requires permissions solely for Bluetooth scanning and file access. Polar Sensor Logger is ideal for researchers, fitness enthusiasts, and developers needing detailed biosignal data management and exporting capabilities from Polar wearables.

## Rankings

- #271,311 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.BLUETOOTH_SCAN`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE`
- `android.permission.FOREGROUND_SERVICE_DATA_SYNC`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.SCHEDULE_EXACT_ALARM`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.j_ware.polarsensorlogger.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

### Pros

- Free to use with good functionality
- Easy to export and save data
- Works well with Polar H10 sensor
- Graphs are adjustable and data is displayed effectively
- Developer responsive to user feedback and updates

### Cons

- Frequently has connectivity issues
- Recent updates have caused functionality problems
- User interface is not intuitive and lacks instructions
- Permission issues, specifically with location tracking during operation
- Some essential features are missing, like ECG logging and breathing interval tracking

## Similar extensions and apps

- [ECG Logger for Polar H10](https://chrome-stats.com/d/com.mattimononen.ecglogger) — 62,994 users, 4.14 / 5
- [ECG Analysis for Polar H10](https://chrome-stats.com/d/com.biosignalssolutions.polarh10ecganalysis) — 60,986 users, 3.17 / 5
- [Polar Recorder](https://chrome-stats.com/d/com.wboelens.polarrecorder) — 1,163 users
- [EphorPolar](https://chrome-stats.com/d/com.vtec.ephorpolar) — 299 users
- [Heart Rate Variability Logger](https://chrome-stats.com/d/com.asma.hrvlogger) — 2,653 users, 3.11 / 5
- [EKGH10 - ECG & Heart monitor](https://chrome-stats.com/d/com.rgazzane.ekgh10) — 814 users
- [Senslogs](https://chrome-stats.com/d/fr.inria.tyrex.senslogs) — 770 users
- [Polar H10 ECG Heart Check](https://chrome-stats.com/d/com.polar.polarextra) — 5,542 users, 2.30 / 5
- [Team Logger H10](https://chrome-stats.com/d/ru.dyn.teamlogger) — 255 users
- [Heart Track Pro](https://chrome-stats.com/d/com.recognica.hearttrackpro) — 19 users
- [HR & HRV Logger](https://chrome-stats.com/d/hrmonitor.com.hr_rri_monitor) — 14,997 users, 3.25 / 5
- [Cardio Capture for Polar H10](https://chrome-stats.com/d/com.nickDTaylor.cardioCapture) — 521 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.j_ware.polarsensorlogger)