Comparison

HRV Tracker for Watch vs Training Today

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HRV Tracker for Watch

Monitor your body's stress levels and recovery by tracking heart rate variability (HRV) using your Apple Watch. Analyze trends, compare HRV to other health metrics, and receive personalized notifications to understand how daily activities impact your well-being.

Highlights
  • Track short-term and long-term HRV trends
  • Compare HRV to activity, sleep, and resting heart rate
  • Receive HRV change notifications on Apple Watch
  • View HRV Trend Summary (experimental)
  • Integrates with Apple Health app
  • Capture HRV data via Mindfulness app
Features
Read full description

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

About

Training Today

This app analyzes your Apple Watch health data to provide a daily readiness to train score. It helps prevent overtraining injuries and guides your training intensity, offering insights into your body's recovery and performance potential.

Highlights
  • Calculates daily readiness to train (RTT) score
  • Multi-day RTT score chart
  • Independent Apple Watch app
  • Uses HRV, workout detection, and custom algorithm
  • Automatic data outlier filtering
  • iPhone companion app with tutorial
  • Complication support for quick RTT glance
Features
Read full description

Take Readiness to Results. Understand your readiness. Choose training that fits today. Follow your progress over time. Training Today brings readiness and training together for triathletes, runners, cyclists and swimmers. Your Readiness to Train (RTT) score uses HRV readings from Apple Health and your personal baseline to help you decide when to push, keep steady or take it easy. FROM READINESS TO YOUR NEXT SESSION With Premium, explore structured swim, bike and run workouts that adapt to your RTT. Review the session, choose your options and send supported workouts to Apple Watch. Review readiness-based changes on iPhone before updating a workout on your Watch. BUILD YOUR TRAINING WEEK Shape Your Week around your training preferences. Choose sessions, move workouts and review suggestions as your week unfolds. Schedule strength and conditioning alongside your endurance training. CONNECT YOUR TRAINING Share readiness and health metrics with TrainingPeaks, with optional daily sync. Upload completed workouts separately from Workout Analytics after granting workout-upload access. Send supported cycling workouts to ROUVY. Choose power targets when configured, or free ride with heart-rate cues. Connected accounts and the relevant permissions are required. SEE THE BIGGER PICTURE Review recorded activities, readiness and HRV history. Use sleep context, Activity Intensity Score and Overall Fitness Index (OFI) trends to better understand your training. OFI is a personal HRV-based trend indicator, not a direct measurement of performance or VO2 max. START FREE. EXPLORE PREMIUM. Start with your readiness score, recent readiness chart, current sleep and resting heart rate, and recent OFI trends. Premium adds workout planning and the library, recorded activity review, deeper history, customization and integrations. Monthly, annual and lifetime purchase options unlock Premium; available options and local prices appear in the app. Training Today needs suitable Apple Health data to calculate readiness. Wear a compatible Apple Watch regularly, including overnight, and allow access to the health data you want to use. Watch workouts and other features depend on compatible devices and software. Your score supports training decisions: consider it alongside how you feel. Training Today does not provide medical advice, diagnosis or treatment. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy: https://trainingtodayapp.com/privacy

Screenshots

HRV Tracker for Watch4 screens
Training Today4 screens

Verdict

The call

The clearest difference is monetization model: Training Today at freemium against HRV Tracker for Watch's subscription. Training Today also leads on review sentiment (53% vs 41%) and iOS requirement (16.0 vs 18). On price, rating, ratings volume and update cadence there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HRV Tracker for Watch sells 2 in-app purchases, starting at $2.99 per month and Training Today sells 4 in-app purchases, starting at $2.95 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for HRV Tracker for Watch against 4.6 for Training Today. Both are backed by a comparable volume of ratings — 948 and 2.6K respectively. Written reviews are what separate them: 41% of HRV Tracker for Watch's written reviews are positive against 53% of Training Today's.

UpkeepUpdate frequency

HRV Tracker for Watch ships an update monthly, Training Today every 6 weeks. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
HRV Tracker for Watch versus Training Today: the parameters behind the verdict, then further details
ParameterHRV Tracker for WatchTraining Today
PriceFreeFree
Rating4.5 (948 ratings)4.6 (2.6K ratings) — better
Positive reviews41.4% of reviews52.5% of reviews — better
Number of ratings9482.6K — better
Update frequencyMonthly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS1816.0 — better
Further details — not scored
Size25 MB48 MB
Age rating4+4+
DeveloperSydvesti OyBetoli Ltd

Customer experience

HRV Tracker for Watch

All ratings948 ratings
Positive86.8%
Neutral5.4%
Negative7.8%
Written reviews87 reviews
Positive41.4%
Neutral6.9%
Negative51.7%

Training Today

All ratings2,638 ratings
Positive89.5%
Neutral4.5%
Negative6.1%
Written reviews314 reviews
Positive52.5%
Neutral11.5%
Negative36.0%

Bugs and requests

HRV Tracker for Watch

Not enough reviews yet to summarise bugs or requests.

Training Today

Reported bugs

4 issues
  • Crashes on launch after purchasing subscription
  • Widgets not working after recent updates
  • Discrepancies between data shown on iPhone and Apple Watch
  • Inability to get HRV readings without using the Breathe app

Requested features

6 requests
  • Extend the number of days shown on the chart
  • Add more data points like sleep and oxygen levels
  • Provide more detailed explanations of the metrics and how they are calculated
  • Improve the Apple Watch complication to update more frequently
  • Integrate with other fitness platforms like Garmin and Polar
Show 1 more
  • Add training plans that adapt to HRV data

In-app purchases

2 purchases

HRV Tracker for Watch

Subscriptions2
  • Monthly Premium$2.991 Month
  • Yearly Premium$19.991 Year
4 purchases

Training Today

Subscriptions2
  • Monthly subscription$2.951 Month
  • Yearly subscription$29.991 Year
One-time2
  • Additional charts$5.99
  • Lifetime$59.99

Questions

Is HRV Tracker for Watch free?
HRV Tracker for Watch is free to download, with in-app purchases available.
Is Training Today free?
Training Today is free to download, with in-app purchases available.
Which has better reviews, HRV Tracker for Watch or Training Today?
Training Today is rated higher. HRV Tracker for Watch averages 4.5 out of 5 from 948 ratings, while Training Today averages 4.6 from 2.6K ratings.
Do HRV Tracker for Watch or Training Today have ads?
Neither HRV Tracker for Watch nor Training Today shows ads.
Which is updated more often, HRV Tracker for Watch or Training Today?
HRV Tracker for Watch ships an update monthly, and Training Today every 6 weeks. Most recently, HRV Tracker for Watch was updated on October 24, 2026 and Training Today on October 24, 2026.

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