
VO2 Max Trainer: Fitness Age
Norwegian 4x4 & Cooper Test
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Free
In-App Purchases
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About
Your VO2 max is a number. VO2 Max Trainer turns it into a training plan.
Start from your current level, choose a goal, and see a realistic path forward. Then train with guided intervals, easy aerobic sessions, and progressive programs on iPhone and Apple Watch.
START WITH YOUR NUMBER
- Import Cardio Fitness readings from Apple Health.
- Enter a result from a lab, watch, wearable, or previous test.
- Get a starting estimate from your age, profile, and activity history.
- Run a guided Cooper 12-minute, 1.5-mile, or Rockport 1-mile field test.
FOLLOW A PROGRESSIVE PLAN
- Choose from beginner, intermediate, and advanced programs lasting 8 to 12 weeks.
- Set a VO2 max goal and see an estimated time to reach it based on your current level and weekly training dose.
- Follow the next scheduled session or choose any workout when your week changes.
TRAIN WITH 38 PROTOCOLS
- Norwegian 4x4, 5 x 3, 8 x 2, Seiler 4 x 8, Billat 30/30, Ronnestad 30/15, Tabata, and more.
- Dedicated packs for VO2 max intervals, short intervals, threshold, Zone 2, sprints, beginners, and field tests.
- Switch sessions between running, walking, cycling, rowing, SkiErg, stairs, swimming, elliptical, Air Bike, or bodyweight.
- Build a quick session or create and save your own interval workout.
TRAIN FROM YOUR WRIST
- Start supported sessions on Apple Watch.
- See live heart rate, target zone, interval timing, and what comes next.
- Review time in zone and completed work after the session.
- Save completed Apple Watch sessions to Fitness.
SEE WHAT IS CHANGING
- Keep readings from Apple Health, field tests, manual entries, and other devices in one trend.
- Compare your current number with your goal.
- See fitness age and percentile context based on your profile.
- Track your weekly hard-session dose, training history, awards, and statistics.
VO2 max values produced by field tests and profile estimates are estimates, not lab measurements. VO2 Max Trainer is a fitness tool, not medical advice. Consult a qualified healthcare professional before beginning vigorous or near-maximal exercise.
Questions or feedback? Contact us from Settings.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://makerbox.notion.site/Workout-Tracker-Privacy-Policy-32cd30b69c4481aa857ff2419091132d
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What's New in VO2 Max Trainer
5.0
September 9, 2026
• Personalized VO2 max training plans • Guided workouts on iPhone and Apple Watch • VO2 max progress, goals, and achievements
MoreSubscription plans
Monthly
Monthly subscription to Workout Timer Pro
$4.991 Month
7 Days trial1
In-App Purchases
$24.99
Lifetime access
Lifetime access to Home Workout Pro.




