Free

Details

Released
September 23, 2021
Updated
December 8, 2025
Heartool screenshot #1 for iPhone
Heartool screenshot #2 for iPhone
Heartool screenshot #3 for iPhone
Heartool screenshot #4 for iPhone
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Heartool screenshot #6 for iPhone
Heartool screenshot #7 for iPhone
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About

Transform your phone into a fitness tracker to monitor workouts with live heart rate data. Analyze training progress with professional charts and gain insights into your health and cardio condition. Integrates with wearable devices and Apple Health.

✓Live heart rate tracking
✓HRV biofeedback
✓Cardio health analysis
✓Workout progress charts
✓Calorie burned tracking
✓Health data synchronization
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What's New in Heartool

2.0.3

December 8, 2025

1. Optimize user experience. 2. Fix the bugs.

User reviews

Advice

Some advice to get it working
For me it work s fine now and is a great tool SEARIOUSLY! So to get working go into apps and find heartool , toggle Bluetooth on along with app refresh and mobile data . Then go to your main Bluetooth in Home Screen pull down , toggle off /on make sure it’s on . Go to heartool and bind . WWORKS EVERY SINGLE TIME . Failing that get a decent mobile data provider and if that fails ditch your phone for something decent .
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No Connection

I’d love to use this tech but it never connected to the app. I’m wondering if the pre-installed battery was the issue. I wanted to be able to pair and go but now this has to go back.

Ditto to gd media 1

I too am 80 years old and working with a coospro chest strap. The app is great: lets me monitor my hr in real time, lets me record my workout to show duration, avg hr, and max hr.

But the exercise zones are set way too high for someone my age, who has a maximum hr. of 140. So the zone tracking is useless to me. I wish the app allowed me to reset that max manually, or to define the zones myself, or to calculate/monitor the zones itself based on the user’s age.
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glitchy

I like the app BUT occasionally it doesn’t compute the % of time within zones. The graph works but not the lower % table.

La aplicación no es como la imagen.

La aplicación no es como las imágenes, solo rastrea frecuencia cardiaca, pasos y frecuencia en reposo.
Se está rastreando con
HW 9 coospo.
También no te guardan los pasos que llevas en el día, los pierdes si lo apagas y lo vuelves a conectar ò si pierdes conexión bluetooth.
Esperemos un actualización ò que dispositivo es para que rastreen todo, ( FR, FRV, TEMP. Oxígeno en sangre,etc.)
Le doy 3 estrellas, por casi, ir exactamente medición con la del pecho, ( aunque creo que el brazalete y no la app)
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Developer apps

FAQ

What does Heartool do?

Heartool transforms your phone into a fitness tracker, allowing you to record workouts with live heart rate data. It provides professional charts to analyze your training progress and offers insights into your cardio health and stress levels.

How does Heartool track heart rate?

The app works with wearable devices to track your live heart rate in real-time. It also supports storing data import if sensors are not connected during training, allowing data synchronization after your workout.

Is Heartool free to use?

Based on the provided information, Heartool is a free application. There are no mentions of in-app purchases or subscription models.

What devices is Heartool compatible with?

Heartool connects to healthy features and supports iPhone 6 and above devices with a system version of iOS 9.0 and above. It also integrates with Apple Health.

Can Heartool help with my fitness goals?

Yes, by tracking your live heart rate at the right intensity and providing professional chart records, Heartool helps you measure your training progress and understand your exercise effects to reach your fitness goals.