Comparison

VO2 Max vs HRR Tracker

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

Head to head
About

VO2 Max

Track your body's oxygen absorption at peak effort with detailed insights and performance estimates for running and cycling. Visualize trends, compare personal bests, and understand your cardio fitness level with a redesigned dashboard and Apple Watch integration.

Highlights
  • VO2 max estimation for running and cycling
  • Performance estimates (W/kg, FTP)
  • Redesigned dashboard with trends and personal bests
  • Interactive charts with customizable date ranges
  • Apple Watch complications and iPhone widgets
  • Cardio fitness level comparison by age and sex
Features
Read full description

VO₂ Max shows how much oxygen your body can absorb at peak effort. The redesigned dashboard puts the latest measurement, rolling averages, and your personal best in one view so you immediately see how training affects cardio fitness. ESTIMATES FOR RUN & BIKE - New tab turns VO₂ max + weight + power into W/kg and FTP estimates for running and cycling. - Compare modeled race times and power against your actual HealthKit FTP/power. NEW DASHBOARD - Trend cards highlight the 7-day average, any selected range, and your best value with percentage deltas. - The interactive chart responds to 1W, 2W, 1M, 3M, 1Y, or All filters and animates every new HealthKit reading. - Entry tiles list the test type, source, and timestamp so you can compare prediction and max-exercise tests. INSIGHTS & GUIDANCE - The info sheet matches your value with the correct age and sex bracket to explain whether it is poor, good, or superior. - Manual refresh, HealthKit warnings, and empty states keep permissions and sync issues obvious. - Trial countdown and subscription access stay a tap away. APPLE WATCH + WIDGETS - All complication families are supported, so your latest VO₂ max is available on every watch face. - iPhone Home Screen and Lock Screen widgets follow the dashboard range you selected. - The Widget Showcase walks you through pinning widgets or complications and previewing layouts. HOW VO₂ MAX IS CAPTURED 1. Wear Apple Watch for at least 24 hours, then record several Outdoor Walk, Outdoor Run, or Hiking workouts with heart rate and GPS. 2. Apple may need several qualifying workouts and passive measurements before the first VO₂ max estimate appears. 3. Give this app read access to Cardio Fitness (VO₂ Max) in Apple Health so the dashboard, widgets, and complications can display the data. Requires Apple Watch Series 3 or later. VO₂ Max makes it easy to see if your cardio fitness plan is working today, over the last weeks, and all time. Terms and conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

HRR Tracker

Features
Read full description

HRR Tracker is a professional-grade Heart Rate Recovery (HRR) monitoring tool designed for athletes, fitness enthusiasts, and health-conscious individuals. > Key Features: Local Processing: Your health data is your own. All heart rate calculations are processed locally on your device; we never store or transmit your personal health information to external servers. Simple Interface: Quickly log and track your recovery rates to optimize your training and monitor your cardiovascular health over time. Privacy First: Built with a "Privacy by Design" philosophy, ensuring a secure and private experience. Disclaimers: Information Only: This app is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a physician for any health concerns. Advertising: This app is supported by Google AdMob. Third-party advertising identifiers may be used to serve personalized ads. Developer Contact: For support or inquiries, please contact us through the developer information provided.

Screenshots

VO2 Max4 screens
HRR Tracker3 screens

Verdict

The call

The clearest difference is in-app purchases: HRR Tracker at none against VO2 Max's 3. HRR Tracker also leads on iOS requirement (15.1 vs 18.0). VO2 Max's advantage is ads (none vs shown). On price and device support 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. VO2 Max sells 3 in-app purchases, starting at $2.99 per month. HRR Tracker asks for nothing beyond the download.

Scorecard3 real differences · 7 level
VO2 Max versus HRR Tracker: the parameters behind the verdict, then further details
ParameterVO2 MaxHRR Tracker
PriceFreeFree
Rating3.8 (131 ratings) — better—
Positive reviews26.0% of reviews—
Number of ratings131 — better—
Update frequencyEvery 2 weeks—
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size11 MB36 MB
Age rating4+4+
DeveloperBernhard HeringAnnalisa Nash

In-app purchases

3 purchases

VO2 Max

Subscriptions2
  • Monthly Subscription$2.991 Month
  • Yearly Subscription$22.991 Year
One-time1
  • Lifetime Access$79.99
None

HRR Tracker

No in-app purchases

Questions

Is VO2 Max free?
VO2 Max is free to download, with in-app purchases available.
Is HRR Tracker free?
HRR Tracker is free to download, with no in-app purchases.
Do VO2 Max or HRR Tracker have ads?
HRR Tracker shows ads; VO2 Max does not.

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