VO2 Max & Cardio Fitness
Fitness Age & Cardio Trends
Free · In‑App Purchases
Know where your cardio fitness stands. See your Apple Health VO2 max, which way it's trending, your fitness age and a year of history, free on iPhone and Apple Watch.
See your Apple Health VO2 max estimate and cardio fitness trend in a calm, focused dashboard.
VO2 Max Daily Tracker shows:
• Your latest Apple Health estimate
• Improving, stable, or declining trend
• A personal target range
• One-year history
• A broad fitness-age estimate with clear methodology
• Home Screen and Lock Screen widgets
• Apple Watch app and complications
• Guidance when no estimate is available
Your fitness data stays on your devices. The app reads Cardio Fitness estimates from Apple Health and never writes Health data.
VO2 max and fitness age are broad estimates for fitness awareness. This app does not diagnose, treat, cure, or prevent any health condition. It is not a substitute for professional medical advice.
VO2+ is optional. Choose a monthly plan, a yearly plan, or a one-time lifetime purchase. Monthly and yearly plans include a 7-day free trial for eligible new subscribers. Prices are shown in the app before you buy and vary by region. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Your account is charged for renewal within 24 hours before the current period ends. Manage or cancel subscriptions in Apple Account settings.
Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://jackwallner.github.io/vo2max/privacy-policy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New Apple Health readings now reach the app and its widgets in the background. Before, a reading that arrived while the app was closed waited until the next time you opened it.
Behind-the-scenes improvements and fixes to keep VO2 Max running smoothly. Thank you for being here.
The developer, Jack Wallner, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jack Wallner
- Size
- 12.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- VO2+ Monthly $5.99
- VO2+ Yearly $29.99
- VO2+ Lifetime $59.99
- Copyright
- © 2026 Jack Wallner