HeartCast: Heart Rate Monitor

HeartCast: Heart Rate Monitor

Broadcast Your Heart Rate!

24 ratings
228 reviews
Free
In-App Purchases

Details

  • Released
  • Updated

Features

HeartCast: Heart Rate Monitor screenshot #1 for iPhone
HeartCast: Heart Rate Monitor screenshot #2 for iPhone
HeartCast: Heart Rate Monitor screenshot #3 for iPhone
HeartCast: Heart Rate Monitor screenshot #4 for iPhone
HeartCast: Heart Rate Monitor screenshot #5 for iPhone
iphone
ipad
watch
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About

Broadcast your heart rate from your Apple Watch or AirPods Pro 3 to compatible fitness equipment. Monitor heart rate zones in real-time with visual, haptic, and optional audible alerts. Ditch the chest strap and use your existing wearables for a seamless workout experience.

โœ“Broadcasts heart rate from Apple Watch/AirPods Pro 3
โœ“Connects to Peloton, Rouvy, Zwift, and more
โœ“Real-time heart rate zone monitoring
โœ“Haptic, visual, and audible zone alerts
โœ“Dynamic Island and Live Activity support
โœ“Ad-free experience
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What users say

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+1

What's New in HeartCast

3.7.0

July 14, 2026

Workout elapsed time can now be displayed on the Watch and iPhone screens. Enable in settings, defaults to off. Heart rate announcement can now be as fast as every five seconds. User configurable. Minor bug fixes and improvements.

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2

In-App Purchases

$4.99

HeartCast Pro

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User reviews

Works well with MyWhoosh

Previously gave up on using my watch for indoor cycling after how unreliable the zwift version was.

Moved to MyWhoosh and realised they had no watch app, and came across this.

Works perfectly, and is reliable and stable. Not a single drop out.

Great that it lets me now connect to anything that needs a Bluetooth heart rate sensor
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When it works, itโ€™s great

***updated review***

6-14-2026

New version works perfectly!

Thanks for the attention on fixing this app.

*******************

I wish this app would work even 90% of the time. It consistently loses connection with the watch. Iโ€™m using it with ROUVY and I start the app on my phone and then initiate the heart rate tracking on my watch. It consistently drops out. During my ride, I have to quit it. Restarted it quit it restarted it. Please figure out what the Bluetooth issue is with this because thatโ€™s where the problem seems to lie. Consistently losing connection to the watch. I would love to rate this higher, but it just doesnโ€™t work reliably enough. Iโ€™m going back to the Apple workout tracking which is too bad because itโ€™s nice when it works with ROUVY.
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This is good

I had difficulty understanding how to start it, still not sure.

I use it to communicate with my Riese & Mรผller Homage 5 S Pinion. Which has a FIT controller that does not communicate directly with Apple Watch.

Heart rate now on FIT display.

Heartcast was a ChatGP suggestion.

Simple and brilliant

It just does it, no fuss.

EXCELLENT !

Iโ€™ve been looking all over forever for an app that does exactly this and Iโ€™ve been searching for a long time. Finally found this one and it does exactly what I wanted. Kudos to you and itโ€™s free! But I went beyond and purchased all the in app stuff available. Great app for the gym.

Developer apps

User experience

๐Ÿž

Reported Bugs

3 issues

App crashes after updates

Bug

Heart rate data not displaying correctly

Bug

Pairing issues with certain devices

Bug
โœจ

Requested Features

3 requests

Automatic start/stop with workouts

Feature

Customizable heart rate alerts

Feature

Compatibility with more fitness devices

Feature

FAQ

What does HeartCast do?

HeartCast broadcasts your heart rate from your Apple Watch or AirPods Pro 3 to Bluetooth-enabled fitness equipment like Peloton, Rouvy, and Zwift. It allows you to monitor your heart rate zones in real-time with various alerts and supports Dynamic Island and Live Activities on your iPhone.

How do I connect HeartCast to my fitness equipment?

To connect, open HeartCast on your Watch and iPhone (or iPhone/iPad for AirPods Pro 3), press 'Start' to begin a workout and enable Bluetooth, then connect your preferred fitness equipment. Ensure HeartCast is visible on your iPhone or iPad when connecting.

Is HeartCast free to use?

Yes, HeartCast is free to download and use as a heart rate monitor with no ads. Optional in-app purchases include 'HeartCast Audible' for voice announcements of your heart rate and zones, and 'HeartCast Pro' as a donation to support development.

What devices are compatible with HeartCast?

HeartCast requires an Apple Watch and iPhone, or AirPods Pro 3 and an iPhone or iPad. It needs access to Apple Health to read heart rate data and create workouts, and Bluetooth to cast to compatible fitness equipment.

Can HeartCast be used with any fitness equipment?

HeartCast broadcasts to Bluetooth-enabled fitness equipment. It specifically mentions compatibility with Peloton Bike and Tread, Rouvy, and Zwift. You can use it with any fitness equipment that accepts a standard Bluetooth heart rate signal.