Bluetooth Heart Rate Monitor++6.1.6 - App Store

Your heart rate. On the equipment you already love.

Turn your Apple Watch or heart-rate-sensing AirPods into a Bluetooth heart rate monitor. With ECHO, you can send your heart rate to compatible fitness equipment and apps, follow your zones, and train with more confidence.

CONNECT YOUR HEART RATE TO YOUR WORKOUT
See your heart rate where you train. ECHO broadcasts through your iPhone to equipment and apps that support standard Bluetooth heart rate monitors.
Use it with compatible products from Peloton(R), Zwift(R), iFit(R), Echelon(R), NordicTrack(R), Wahoo(R), Schwinn(R), Precor(R), Life Fitness(R), and more, including the Rogue Echo Bike V3.

FIND YOUR ZONE. MAKE EVERY WORKOUT COUNT.
Know when to push and when to ease off with live heart rate zones on your Apple Watch and iPhone. You can use zone tracking even without connecting to equipment that doesn't natively support zone training.

Choose familiar zone models inspired by popular fitness platforms, or create custom zones that match how you train. Custom zones are included at no extra cost.

TRY IT FREE
Start with free workouts up to 20 minutes. Connect to your equipment, explore your zones, and see how ECHO fits your routine before upgrading.

KEEP YOUR WORKOUTS CONNECTED TO APPLE HEALTH
ECHO works with Apple Health to read your heart rate. Choose whether to save your workouts to Apple Health or let your connected fitness app or gear handle the saving.

YOUR HEART RATE DATA STAYS YOURS
ECHO doesn't share, or sell your heart rate data. Workout data stays on your devices, and you stay in control of whether your workouts are saved to Apple Health.

LESS GEAR. MORE GO.
You already have a heart rate sensor. Put it to work with ECHO.

BEFORE YOU START
You need an iPhone and a compatible Apple Watch, AirPods, or heart rate monitor. Heart rate sensing is not available on every AirPods model.
Your equipment or fitness app must support standard Bluetooth heart rate monitors. ECHO is not compatible with Garmin bike computers or Rogue Echo Bike V2.

ECHO is independently developed by PK Fitness Apps and is not affiliated with or endorsed by the brands listed above. All trademarks belong to their respective owners.

Version History What's New in Echo
• Use your Garmin watch: turn on Broadcast Heart Rate on your Garmin, then pick it in Heart Rate Source. Echo connects to it, remembers it, and reconnects whenever it's in range.
• Apple Watch stays connected: during longer workouts, some Apple Watches (including Apple Watch Ultra) could stop sending heart rate to Echo, followed by a "can't connect to the watch" message. Echo now notices when the connection stalls and reconnects within seconds.
• Equipment reconnects without a restart: some machines, such as NordicTrack, had to be turned off and on again before they could connect to Echo a second time. They now reconnect straight away.
• No more Apple Account sign-in prompt when you open Echo. Some people saw it after reinstalling or restoring their iPhone, and again every time they opened the app.

Thanks for using Echo! If something isn't working, tap Settings › Email us to send us your logs. 6.1.6 14h ago What's New in Echo
• Pro stays Pro: a few Pro members had workouts stopped at 20 minutes as if they were on the free plan. That happened when Echo couldn't check with the App Store in time, such as when offline or on a slow connection. Echo now remembers your Pro status, so your workouts aren't cut short.
• Steady heart rate during hard efforts: when your Apple Watch sent heart rate to Echo over Bluetooth, readings above 120 BPM were dropped. Your equipment could then show one heart rate number for minutes at a time. Echo now accepts every reading from 30 to 250 BPM.
• More gear to choose from: EXR, TrainingPeaks Virtual, OnelapFit, Assault and Wattbike are now in the gear list.
• Teeter Elliptical workouts now save as Elliptical.

Thanks for using Echo! If something isn't working, tap Settings › Email us to send us your logs. 6.1.5 5d ago What's New in Echo
• Accurate workout time: the timer no longer opens a new workout showing hours from an earlier one, and your iPhone and Apple Watch now show the same time, even after the watch reconnects or you pause.
• No accidental disconnects: tapping Disconnect on the equipment button during a workout now asks you to confirm first, so your treadmill, bike or fitness app keeps getting your heart rate.
• More reliable heart rate from Apple Watch: Echo now answers every update your watch sends over Bluetooth, so they don't get stuck waiting.
• Easier troubleshooting: if your equipment shows Echo HR as connected but no heart rate, support logs now show exactly where the connection stopped, so we can help faster.

Thanks for using Echo! If something isn't working, tap Settings › Email us to send us your logs. 6.1.4 Oct 8 Thanks for all the feedback since our last big update! This release fixes the issues you told us about:
• Workout timer now starts from zero every time. No more time carried over from a previous workout.
• Ending a workout on your iPhone now reliably ends it on your Apple Watch, too.
• Calories saved to Apple Health now match what Echo shows. They were being counted twice.
• Apple Watch heart rate recovers on its own more reliably if it stops updating mid-workout, with no need to pause and resume.
• Orange Theory zones: "Resting" is now "Very Light" and "Easy" is now "Warm Up", to match the Orange Zones app.

Keep the feedback coming! 6.1.3 Oct 5 Fixed a bug causing connection stability, particularly with long rides.
Overall connection stability has been improved.

We also made some improvements to the heart rate source connection view. 6.1.2 Oct 3 Fixed a bug preventing users from accessing discount codes. 6.1.1 Sep 24 New in this release:
• Added post-workout summaries.
• Added the ability to toggle the time on and off by tapping the time block area during a workout
• Added a new time-in-zones page to the live workout screens.
• Added automatic AirPods detection.
• Added support for NK SpeedCoach GPS 2, ActiveTools Active Speed, SpeedCoach OC 2, and SpeedCoach SUP2.

Bug fixes:
• Fixed an issue that caused Zwift to disconnect during long rides.

Plus, numerous performance improvements. 6.1.0 Sep 19 Fixed a bug that prevented users from entering their resting heart rate. 6.0.8 Jul 7 Bug fixes and enhancements for menu UI 6.0.7 Jun 3 Bug fixes. 6.0.6 Apr 15 Bug fixes and performance enhancements. 6.0.5 Apr 10 UI animation and stability enhancements 6.0.3 Apr 6 Fixed bug with updating the main screen when using or changing a custom zone model. 6.0.2 Apr 2 Fixed a bug causing the onboarding to reappear at launch. 6.0.1 Apr 1 Major Update!
• Add support for Zwift users - connect Apple Watch heart rate to iPhone, iPad, or PC running Zwift.
• Integrated expanded FAQs with a search function.
• Integrated a Compatibility Checker.
• UI improvements.
• Minor bug fixes. 6.0.0 Mar 29 Bug fixes. 5.6.10 09/17/2025 Fixed bug when using the swimming workout type. 5.6.9 07/08/2025 Bug fixes and performance enhancements 5.6.8 07/01/2025 Fixed a bug preventing points from showing correctly on the phone. 5.6.7 06/21/2025 Fixed a bug causing the workout type to save incorrectly after a type 'other' workout. 5.6.6 06/20/2025 Bug fixes and performance optimizations 5.6.5 05/28/2025 Bug fixes. 5.6.4 05/22/2025 Added a new workout type: boxing

Thank you for your feedback! We love hearing from our users. support@pkfitness.com 5.6.3 04/25/2025 Added German localization. 5.6.2 04/15/2025 Added multi-language support 5.6.0 04/14/2025