|20 Nov 2019||Update||Version 1.1.6|
|30 Oct 2019||Update||Version 1.1.5|
|13 Sep 2019||Update||Version 1.1.4|
|09 Sep 2019||Update||Version 1.1.3|
|04 Sep 2019||Update||Version 1.1.2|
|20 Jul 2019||Increase||$1.99|
|19 Jul 2019||Update||Version 1.1|
|24 May 2019||First price detected||$0.99|
|24 May 2019||First version detected||Version 1.0|
*Requires an Apple Watch with watchOS 5.2 or later*
HRV Tracker makes spotting drops in your HRV easy by monitoring your HRV measurements in the background and showing notifications after your HRV drops under your desired level. HRV Tracker will monitor drops in individual measurements and also your 24 hour HRV average. You can change the default notification levels directly in your Apple Watch app. Please note that notifications can get postponed for example because of a low battery level.
***Apple Watch for daily tracking***
Browse through last seven days of HRV measurements by using the digital crown. See how measurements compare to your seven day period and individual days. By tapping the graph you can toggle through the first values of each day. Use complications on your Apple Watch to stay informed on changes in your HRV.
Besides the automatically recorded HRV measurements you can use the Breathe app on your Apple Watch to record new HRV measurements. Start a Breathe session in the Breathe app and after the session ends a new HRV measurement will be available in HRV Tracker.
***Compare HRV to other key metrics***
Find possible causes for changes in HRV by using the comparison graphs available on your Apple Watch:
-Sleep hours: By default HRV Tracker will use sleep data provided by sleep apps that add sleep data to HealthKit. If no sleep data is available HRV Tracker will calculate estimated sleep hours per night (estimated sleep time will only be available in the Apple Watch app)
-Activity: By default HRV Tracker will use your Active Energy (calories) as the activity metric. In the HRV Tracker Apple Watch app you can choose to use a custom activity score that emphasizes the intensity of daily activity.
-Daily resting heart rate (RHR).
Toggle between comparison graphs by tapping the upper part of the screen.
***Follow Long-term HRV trend***
Follow your long-term HRV trend on your iPhone and compare your short term measurements to all-time data.
-Select week from weekly graph to see daily HRV values of the selected week.
-Browse through all daily HRV values of the selected day
-Compare daily HRV averages to other relevant daily metrics: Activity, Sleep (if available in the Health app) and Resting Heart Rate
Data read from the Apple HealthKit database is only used to show information related to your Heart Rate Variability. Information read by HRV Tracker is only stored and used locally on your iPhone and Apple Watch.
***How is it measured***
Heart rate variability measurements used by HRV Tracker are calculated by measuring the variation between individual heartbeats. Your Apple Watch automatically measures your HRV in the background and stores the outcome into HealthKit. HealthKit uses SDNN heart rate variability, which is calculated using the standard deviation of the inter-beat (RR) intervals between normal heartbeats (measured in milliseconds). Besides background measurements generated automatically by your Apple Watch you can use the Breathe app on your Apple Watch to generate new measurements.
-HRV Tracker can now be downloaded as a standalone app from the App Store on your Apple Watch
-Sleep data: By default HRV Tracker will now use sleep data provided by sleep apps that add sleep data to HealthKit. If no sleep data is found HRV Tracker will calculate estimated sleep hours per day (calculated estimates are only available in the Apple Watch app)
-Activity data: By default HRV Tracker will now use your Active Energy (calories) as the activity metric. You can also choose to use a custom activity score that emphasizes the intensity of daily activity (only available in the Apple Watch app). To change the activity source open HRV Tracker settings on your Apple Watch (Firmly press screen to open menu and tap settings)
-Instead of multiple ranges in the seven day HRV gauge, now only the range of the selected day is shown
-bug fixes and performance improvements
*Updated iPhone app*
-Daily comparison metrics available: Activity (Active Energy), Sleep (if available in the Health app), Resting Heart Rate
-Select any date available and see the comparison metrics of the selected day. Also the HRV gauge will update to show the daily average of the selected day
-Instead of multiple ranges in the all-time HRV gauge, now only the range of the selected week is shown
-bug fixes and performance improvements
-Changes for the sleep calculation on the Apple Watch app
*Updated iPhone app*
-Examine daily HRV data of the selected week
-Browse through individual measurements of the selected day
-Weekly ranges and the all-time range is now calculated from daily averages
-Similar dark background as on the Apple Watch
*Complication updates for the Apple Watch*
-New settings menu where you can choose complications to show your 24 hour HRV average instead of the latest measurement
-GraphicCircular complications available on the Infograph watch faces will now show a gauge with HRV data instead of the app icon
-GraphicCorner and GraphicCircular gauges will change their color to red if your HRV is below your notification level, or to yellow if your HRV is very close to your notification level (+3ms or less)
Other minor changes and fixes
*Compare your HRV to sleep, activity and resting heart rate*
-Estimated sleep hours per night
-Activity score that emphasizes the intensity of daily activity. As an example a day with multiple hours of casual walking could get a lower activity score than a day with just 30 minutes of fast running
-Daily resting heart rate (RHR)
-All data used by comparison graphs is automatically produced and calculated just by wearing your Apple Watch
*24 hour HRV notification*
-Besides notifications from individual HRV measurements you can now get notified if your 24 hour HRV average drops under your desired level
-Tune your 24h notification level in Notification Settings on your Apple Watch
Other minor fixes
All prices are displayed in dollars (USD $). This price was last checked on the United States of America App Store 2 days ago and may have changed.