ECHO: Watch Heart Rate Monitor 4+

Broadcast Bluetooth HR

Bred Ventures Inc

    • 4.4 • 3.4K Ratings
    • Free
    • Offers In-App Purchases

Description

ECHO: Turn Your Apple Watch into a Bluetooth Heart Rate Monitor

Unleash your Apple Watch’s potential and supercharge your workouts with ECHO. Transform it into a seamless Bluetooth heart rate monitor, connecting effortlessly to your favorite fitness apps and equipment. Take your training to the next level—anytime, anywhere.

Connect with Ease
Link your Apple Watch heart rate data to workout gear or apps supporting standard Bluetooth monitors. From apps to treadmills to bikes, ECHO’s got you covered.

Master Your Heart Rate Zones
Say goodbye to guesswork. Track zones effortlessly on your Apple Watch and iPhone—Bluetooth or not. Choose from top-tier models like Orange Theory Fitness®, Peloton®, iFit®, Echelon®, NordicTrack®, American Heart Association®, and Fat Burn®.


Bonus: Custom Zones Included! Create your own zone model for a tailored fitness edge—at no extra cost.

Try It Free
Jump in with 20-minute free workouts. Experience ECHO’s game-changing tech with zero commitment and see how it elevates your routine.

Your Ultimate Workout Partner
ECHO syncs flawlessly with apps and devices like Rogue Echo Bike V3, Peloton®, iFit®, Zwift®, Precor®, Life Fitness®, Echelon®, NordicTrack®, Wahoo®, and Schwinn®. Whether you’re cycling, running, or crushing it on an elliptical, ECHO delivers a smooth, immersive ride.

Privacy You Can Trust
Your data stays yours. We never store, share, or sell it—period. Privacy isn’t just a promise; it’s our foundation.

Apple Health, Simplified
ECHO taps into Apple Health to read heart rate data securely, passing it straight to your device—no storage, no fuss. Optionally save workouts to Health, fill your rings, and crush your goals.

Ditch the Straps, Embrace the Watch
No chest straps. No armbands. Just your Apple Watch (Series 3 or newer). Unlock heart rate and zone training like never before.

Heads Up
Not compatible with GARMIN bike computers or Rogue Echo V2 bikes.

From PK Fitness Apps
We’re an independent team obsessed with fitness tech excellence. ECHO isn’t affiliated with Orange Theory Fitness®, Peloton®, iFit®, Zwift®, Precor®, Life Fitness®, Echelon®, NordicTrack®, Wahoo®, Schwinn®, or American Heart Association®.

What’s New

Version 5.6.2

Added German localization.

Ratings and Reviews

4.4 out of 5
3.4K Ratings

3.4K Ratings

Matty2L ,

Just What I Was Looking For

I use a Garmin head unit on my mountain bike for tracking all my rides. I’m also a huge data geek and have power meters, speed, and cadence sensors on both of my mountain bikes and my road bike. I also love collecting HR data, but I can’t stand wearing the chest strap, so having an app that allows me to use my Apple Watch Ultra as an external HR monitor is awesome.

Most of the time, this works great, but for some odd reason, I’ll occasionally look down at my Garmin and realize it’s not getting any HR data. I’ll then open up my phone and notice that the app has closed out on its own. Restarting the app immediately reconnects it to my Garmin. This will typically happen once per hour at most (and not necessarily every ride), but on one ride last week, it disconnected 3 times in one hour.

From what I’ve read in the reviews on other comparable apps, this one seems to be the most reliable (not sure why there are so many connection issues with HR apps), but if they could get it to stop crashing, this would be 5 stars all the way.

Developer Response ,

Thanks for the review.

I suspect the app is not crashing but rather stopping the workout sessions on the watch which stops the app. If it were crashing, we would see crash logs and we're not seeing any crash logs.

Reach out to us at support@pkfitness.com. Let's see if we can get this fixed for you.

GeekyDragonfly ,

Loving this app!!!

I’ve been using this app for a couple of weeks now and really love the convenience of not having to wear a chest strap to track my heart rate. The ease of just pressing a button to connect and start syncing my heart rate from my Apple Watch to my Nordictrack treadmill is a dream come true!! Thank you for developing it!!

I love that it keeps my workout data if my watch dies during a workout. My watch will sync it to my phone once it recharges.

My only issue is that I lose my workout data if I forget to stop it before I start another workout in another app that uses my watch. For instance, I usually do a mindful cooldown in Apple Fitness+ after my workout. If I don’t stop my Echo app before starting the mindful cooldown, the Echo is “interrupted” and will stop (to allow the Apple Fitness+ to take over), which is fine, but it should stop at that point and post my workout data, not lose it altogether. This has happened multiple times, so I am certain it’s not a fluke. You’d think, after so many times of losing my workout data, I’d remember to stop the echo app before starting another workout, but I guess I’m just too tired to think through that many steps. I hope the developers see this and fix it so I will stop losing my echo workout data. Surely others have noticed the same issue?

Developer Response ,

Hey there GeekyDragonfly, appreciate the detailed review and kind words about the app.

Regarding the interrupted workout, Apple only allows a single workout app to run on the watch at any given time. If you start another workout on your watch when Echo is running, it's going to kill it.

However, you should not be losing your workout, it should simply end it. Can you reach out to use at support@pkfitness.com when you have a minute to discuss this?

jsampsell ,

Easy peasy!

We purchased a treadmill in January of 2021 that has BLE heart rate monitor capabilities. After doing some research, I ran across a number of positive reviews for the ECHO app. When I first got the app, the brand of treadmill that we bought wasn’t listed in the available manufacturer list but I tried each one just to see if any may end up working. Sure enough, one of them worked and I emailed the ECHO team to share what I found to work. Figured it would benefit other users. Within a week, the app was updated and the brand of my treadmill was listed and worked perfectly. I’m not naïve enough to think that my email was what added my brand to the list but it just showed that they had already been working on updating the app. They even reached out to me a while after just to see if things were still working right. They certainly have. I have a series 6 watch, non-cellular, and an iPhone 11 Pro Max. Everything has worked flawlessly for about three months now. I definitely recommend the ECHO app if you have a BLE capable treadmill.

Developer Response ,

We love that! Thanks for trying on a new treadmill brand and providing us with the information so that we can add it for other users!

App Privacy

The developer, Bred Ventures Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Supports

  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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