HRV Tracker for Watch
Track Heart Rate Variability
Free · In-App Purchases
Heart Rate Variability (HRV) measurements recorded by your Apple Watch can provide insight into the stress your body is experiencing. By using HRV Tracker to track short-term readings and long-term trends, you can see how factors such as daily workload, workouts, and sleep affect your body's readiness, recovery, and stress. Simply put, the higher your HRV, the better.
***Requires Apple Watch with watchOS 10 or later***
HRV Tracker for Watch integrates with the Health app and uses data stored in the Health app. To ensure your Apple Watch can record HRV measurements, open the Health app on your iPhone to check for existing data: Health app > Browse > Heart > Heart Rate Variability. In addition to automatic recordings, you can also use the Mindfulness app on your Apple Watch to capture new HRV data. Start a Breathe session, and once it ends, a new HRV measurement will appear in HRV Tracker.
***Compare HRV to Other Key Metrics***
Identify potential causes for changes in your HRV with Comparison Charts.
-Compare your HRV to relevant health metrics such as activity, sleep, and resting heart rate.
***Follow Long-Term HRV Trends***
Track long-term HRV trends on your iPhone and compare short-term readings to your long-term averages.
-Experience smarter insights with the new HRV Trend Summary feature (experimental). Available on Apple Intelligence powered devices running iOS 26.
***Get Notified on Your Apple Watch***
HRV Tracker helps you spot changes in your HRV by monitoring your data in the background and notifying you when your HRV falls below or rises above your preferred levels.
-Tracks individual readings as well as 24-hour and 7-day averages.
-You can customize the default notification thresholds in the Apple Watch app.
-For notifications to work properly, add HRV Tracker to your Watch Face.
-Note that notifications may be delayed due to factors like low battery.
***And More***
Track your HRV in multiple ways on your Apple Watch and iPhone.
-Choose from various Home Screen widgets or Watch Face complications
-Customize charts and views in settings
-Scroll and tap on charts for additional insights
***Privacy***
Your privacy is really important to us — we do not collect any data from this app.
***How Is It Measured?***
HRV Tracker uses heart rate variability measurements calculated by detecting the variation between individual heartbeats. Your Apple Watch automatically measures HRV in the background and stores it in HealthKit. HealthKit uses SDNN (Standard Deviation of NN intervals), which reflects the standard deviation of time between normal heartbeats (measured in milliseconds).
Please note that many of the features mentioned above are available only to subscribers.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
If you have any questions, we’re happy to help:
contact@sydvesti.com
more Thank you for using HRV Tracker for Watch. This update focuses on new features for iOS 27 and watchOS 27 — smarter summaries on iPhone and a new HRV trend summary on Apple Watch.
Smarter summaries on iPhone (iOS 27):
Trend summaries now run through Private Cloud Compute whenever possible, including the tips in the full Trend Summary sheet. When Private Cloud Compute isn't available, the on-device model takes over.
AI HRV Summary on Apple Watch (watchOS 27):
Your watch now generates a short HRV summary, privately via Apple's Private Cloud Compute.
3.1 11 Sept
Introducing Goals, a new tab for turning your HRV data into something to aim for.
-Three goal types: build a streak of days above a target, take on a daily challenge over a month or more, or raise your 7-day average step by step.
-Targets that fit you: suggested ranges come from your own history, and a live preview shows how your goal would have played out over the past weeks before you commit.
-A plan from your data: see which habits, sleep patterns and training loads have actually moved your HRV, and what they are typically worth.
-Follow your progress with a streak calendar, progress chart and a projection of where your average is heading.
-Understand what is affecting each goal right now: today's HRV, sleep and activity compared against your own norms. No generic advice, only what your data supports.
-Finished goals get a full recap: your result, best stretch, and what helped or hurt along the way, collected on a new Completed shelf.
-Optional notification when a goal wraps up.
-Works with daily or sleep HRV, in SDNN or rMSSD.
-Plus small fixes and polish throughout the app.
If you have any question or feedback, please contact us at contact@sydvesti.com
3.0 11 Aug
Thank you for using HRV Tracker for Watch. This update focuses on bringing new features and improvements to the iPhone app:
-3-Day HRV Forecast: A new card in Insights shows an estimated 3-day outlook for your HRV, so you can see where your recovery may be heading.
-Redesigned trend summary button: The trend summary button on the Main screen now shows your current HRV trend direction at a glance, before you even open it.
-Tags and notes now save automatically as you add or edit them. No more tapping Save.
-Improved Dynamic Type support: Better handling of your preferred text size for more comfortable reading (iOS).
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.9.1 20 Jun
Thank you for using HRV Tracker for Watch. This update focuses on bringing new features and improvements to the iPhone app:
-3-Day HRV Forecast: A new card in Insights shows an estimated 3-day outlook for your HRV, so you can see where your recovery may be heading.
-Redesigned trend summary button: The trend summary button on the Main screen now shows your current HRV trend direction at a glance, before you even open it.
-Tags and notes now save automatically as you add or edit them. No more tapping Save.
-Improved Dynamic Type support: Better handling of your preferred text size for more comfortable reading (iOS).
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.9 17 Jun
Thank you for using HRV Tracker for Watch. This update contains the following new features and improvements:
-Tags: Add tags to keep track of how things like stress, being sick, and alcohol might have impacted your HRV (iOS).
-Calendar: Browse your HRV history by date, and see how your schedule might have affected your HRV by viewing it alongside your calendar events (iOS).
-Insights view now includes info about tags (iOS).
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.8 24 May
Thank you for using HRV Tracker for Watch. This update contains the following improvements:
-Exclude out-of-range HRV measurements, such as abnormally high values. Open settings to enable (available on iOS and watchOS).
-New Apple Watch setting lets you choose whether the app always returns to the glanceable main view after closing.
-Restructured the Tips section in the Trend Summary view (iOS).
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.7.7 20 Apr
Thank you for using HRV Tracker for Watch. This update adds support for rMSSD:
-Switch between SDNN and rMSSD measurements in settings.
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.7.6 27 Mar
Thank you for using HRV Tracker for Watch. This update contains the following improvements:
-HRV CV (Coefficient of Variation) now available in the iOS app: Track how consistent your HRV is over time with a dedicated trend chart
-Sleep HRV chart: See how your HRV has recently trended during sleep.
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.7.5 16 Mar
Thank you for using HRV Tracker for Watch. This update contains the following improvements:
-Introducing new Insights section. Insights are generated from your personal HRV, sleep, and activity data to help you understand patterns and optimize your HRV. The number and types of insights depend on the available data. (iOS)
-Adjusted UI to take better advantage of Liquid Glass. (iOS)
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.7 11 Feb
Thank you for using HRV Tracker for Watch. This update contains the following improvements:
-Correlation index for comparison charts: helps identify potential relationships between HRV and other relevant health metrics, such as sleep and activity. (OS)
-An at-a-glance view of the selected day's comparison metrics, now displayed above the 24-hour view. Tap to quickly jump into additional info. (iOS)
-Ability to adjust the top section size on the iPhone. Open chart settings to toggle between different size options. (iOS)
-Possibility to use a minimized version of the 24-hour chart / list (iOS)
-Other smaller improvements and bug fixes.
if you have any questions or feedback, please contact us at contact@sydvesti.com
2.6.1 18/12/2025
Thank you for using HRV Tracker for Watch. This update contains the following improvements:
-Correlation index for comparison charts: helps identify potential relationships between HRV and other relevant health metrics, such as sleep and activity. (iOS)
-An at-a-glance view of the selected day's comparison metrics, now displayed above the 24-hour view. Tap to quickly jump into additional info. (iOS)
-Possibility to use a minimized version of the 24-hour chart / list (iOS)
-Other smaller improvements and bug fixes.
if you have any questions or feedback, please contact us at contact@sydvesti.com
2.6 10/12/2025
Thank you for using HRV Tracker for Watch.
This update contains small improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.5.2 04/11/2025
Thank you for using HRV Tracker for Watch.
This update contains small improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.5.1 28/10/2025
Thank you for using HRV Tracker for Watch. This update contains the following improvements for iOS 26 and watchOS 26:
-Experience smarter insights with the new HRV Trend Summary feature. Available on Apple Intelligence powered devices running iOS 26.
-Adjusted Apple Watch app for watchOS 26.
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.5 10/09/2025
Thank you for using HRV Tracker for Watch. This update contains the following improvements:
-iOS: Chart-specific averages are now visible in the header of each applicable chart. By tapping the chart-specific average, you can now easily show the specific average within the chart. With comparison charts, you can now also specify if you wish to show the comparison metric average or the HRV average within the chart.
-watchOS: Chart specific average visibility info is now stored for each chart.
-Other smaller improvements and bug fixes.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.1 07/07/2025
Thank you for using HRV Tracker for Watch. With the 2.0 update, we have completely redesigned the watchOS and iOS apps and added a range of new features.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.0.1 29/05/2025
Thank you for using HRV Tracker for Watch. With this major 2.0 update, we’ve completely redesigned the watchOS and iOS apps and added a range of new features.
If you have any questions or feedback, please contact us at contact@sydvesti.com
2.0 21/05/2025
Thank you for using HRV Tracker for Apple Watch .This update contains the following improvements:
-Added support for Lock Screen widgets (available on devices running iOS 16).
-Sleep time calculations fixed for users using watchOS 9.
-Better support for Apple Watch Ultra screen size.
If you have any questions or feedback, please contact us at contact@sydvesti.com
1.5.5 08/12/2022
Thank you for using HRV Tracker for Watch. This update contains the following improvements:
-Better support for devices running watchOS 8 or later. Including support for devices with Always on Display and a new menu on the Apple Watch.
-Fixed issues with the notification settings view on the Apple Watch
-Other minor improvements and bug fixes
If you have any questions or feedback, please contact us at contact@sydvesti.com
1.5 05/04/2022
-On Apple Watch devices running watchOS 7 or later you can now add multiple HRV complications with different values: Latest value, daily average, 24h average, seven day average
-Now also sleep data from 3rd party sleep trackers is shown in the Apple Watch app
-Minor bug fixes
Thank you for all the feedback and improvement suggestions. We will keep on adding requested changes in upcoming updates.
For any questions and feedback you can contact us at contact@sydvesti.com
1.3 18/03/2021
Apple Watch: Added notifications for HRV values that are above the users threshold.
-Use the Apple Watch app to set the upper limits for notifications. Open Notification Settings by pressing the screen after opening the app.
-Toggle between setting upper and lower limits by tapping the desired notification gauge
iPhone: Added new widget that shows the following information
-Latest HRV measurement and when it was recorded
-Daily HRV average
-HRV average of the past seven days
Thank you for all the feedback and improvement suggestions. We will keep on adding requested changes in upcoming updates.
For any questions and feedback you can contact us at contact@sydvesti.com
1.2.5 28/12/2020
-watchOS 7 compatible version with fixes to sleep data.
-Home Screen Widgets for iOS 14. We will add additional HRV widgets in upcoming updates. Let us know what HRV related data you would like to see in your Home Screen Widgets by contacting us at contact@sydvesti.com
1.2.2 06/10/2020
watchOS 7 compatible version that now uses sleep data recorded by the Sleep app
1.2.1 24/09/2020
Fixes the bug that caused HRV Tracker to show too many sleep hours for users who were using multiple sleep apps at the same time.
For any questions please contact us at contact@sydvesti.com
1.2.0 28/04/2020
Minor update with improvements for watch complications and bug fixes for both devices.
Previous update (1.1.8) highlights:
-New today widget available on the iPhone. Shows a graph with HRV measurements of the current day. Daily min, max and average are shown on the left. Latest measurement and timestamp shown on the right
-Added new rectangle complication for the Modular Compact and Infograph Modular watch faces
-HRV values on your complications are now hidden if your Apple Watch is locked
for any questions please contact us at contact@sydvesti.com
1.1.9 05/02/2020
Thank you for using HRV Tracker for Watch. This update focuses on new features for iOS 27 and watchOS 27 — smarter summaries on iPhone and a new HRV trend summary on Apple Watch.
Smarter summaries on iPhone (iOS 27):
Trend summaries now run through Private Cloud Compute whenever possible, including the tips in the full Trend Summary sheet. When Private Cloud Compute isn't available, the on-device model takes over.
AI HRV Summary on Apple Watch (watchOS 27):
Your watch now generates a short HRV summary, privately via Apple's Private Cloud Compute.
more Version 3.1 11 Sept
Data Not Collected The developer does not collect any data from this app.
