Features & Capabilities

Turn your phone into a fitness tracker with Heartool, to record your workouts with heart rate data. It is a concise and most accurate way to measure your training progress, to reach your fitness goals.

Working with wearable devices to train in real time. For heart rate sensor recommend: www.fitcare.com

Heartool gives you:

1.Tracking your live heart rate at right intensity for maximum results. With professional chart records, users could see their exercise effects when and after their training.

2.HRV biofeedback. Based on the heart rate sensor R-R interval data, together with professional algorithm, Heartool could help you to know your health and training status.

3.Cardio health condition. Based on the waveform (ECG) data and through the professional algorithm, Heartool could help you to discover hidden heart health hazards in time.

HealthKit

  1. Heartool Will share the record (heart rate) to the Apple's health applications after each exercise

  2. Because the privacy of your health data is very important, the user must agree to authorize Apple Health in "Set up -> Authorization" in the Heartool APP before sharing the heart rate data to your Apple Health app.

  3. Heartool Connect to a healthy feature supports iPhone 6 and above devices, and the system version is iOS9.0 and above.

Main features: 1.Personalized heart rate zone setting, sync to the training sensor. 2.Calories burned checking based on the workouts. 3.Storing data import. If sensors not connected to the App, data could sync to the App after training. 4.Daily health management with cardio status and stress reflect. 5.Health data record, review a summary of the result from your entire workout history.

User Growth & Download Statistics

App
By:
Shenzhen Onecoder Technology Co., Ltd.
Rating:
3.30
(16)
0.20
Version:
2.0.3 Last updated: 2025-12-08
Version code:
880371585
Creation date:
2021-09-23
Compatible devices:
Size:
24.49MB
URLs:
Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-03
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Shenzhen Onecoder Technology Co., Ltd.
Apple Apps Store
https://apps.apple.com/us/app/heartool/id1567361608

User Reviews

Heartool provides real-time heart-rate data, zone percentages, calories, and a visual chart, with HIIT-friendly alerts and workout history, and it works well with Coospo HR monitors. Users praise its simple, accurate interface and usefulness for basic HR tracking. However, many reviews flag recurring network errors and login problems that break tracking and data saving; zone data can be incomplete or miscalculated (missing time-in-zone, inconsistent percentages); and there are occasional data accuracy issues compared with other apps and devices. Overall, core features are solid when functioning, but reliability and data accuracy need improvement.
Pros
  • Works well with Coospo chest/arm heart rate monitors when connected.
  • Real-time BPM display, heart rate zones (percentages), calories burned, and a live color-coded chart with zone alerts.
  • Keeps a workout history with analysis options and max heart rate warning.
  • Simple, accurate, and useful interface suitable for HIIT and basic HR tracking.
Cons
  • Frequent network errors and login issues that prevent tracking and data saving.
  • Zone data display issues: missing time-in-zone data and inconsistent percentage calculations.
  • Data accuracy concerns: readings may not match other devices/apps and calories are overestimated.
Recent reviews
I like the app BUT occasionally it doesn’t compute the % of time within zones. The graph works but not the lower % table.
by rk*****, 2026-05-02

Just use this for the chest heart rate monitor. It works well. Very well!!!
by Th*****, 2025-10-01

Good
by Th*****, 2025-05-02
View all user reviews ›

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