VO2 Max Trainer: HIIT, Zone 2

VO2 MAXimizer: Your complete toolkit to measure, track, and improve your VO2 Max — right from your iPhone and Apple Watch.

Whether you're training for a bleep test, prepping for a police or military fitness assessment, or simply want to track your cardiovascular health, VO2 MAXimizer has you covered:

• Accurately measure your VO₂ max with 5 internationally recognised fitness tests: Beep Test (20m & 15m), Yo-Yo Test, Cooper Test, Balke Test & 2.4km / 1.5 miles Test.
• Push yourself with HIIT sessions — Tabata, 4x4 Nordic, Gibala, or build your own fully customised intervals.
• Burn fat and improve your aerobic base with Zone 2 training.
• Track your progress and see how you compare on a global leaderboard.

PROFESSIONAL FITNESS TESTING IN YOUR POCKET Get lab-quality fitness assessment on your iPhone and Apple Watch with the Beep Test, Yo-Yo Test, Cooper Test, Balke Test & 2.4km / 1.5 miles Test. SEAMLESS APPLE WATCH EXPERIENCE Leave your iPhone behind — your Apple Watch delivers precise timing through haptic feedback and audio cues. Monitor your heart rate in real time and sync results automatically across devices.

TRACK YOUR JOURNEY Every test and workout is saved automatically. Watch your VO₂ max improve, track your distance gains, and see how you measure up against others in your age group. With HealthKit integration, your fitness data fits seamlessly into your overall health picture.

DESIGNED FOR ATHLETES & FITNESS ENTHUSIASTS From audio cues to crystal-clear visuals, every detail is built to help you perform at your best. Track progress with detailed charts, compare results to international standards and other athletes, and watch your fitness level improve over time.

What's New in V3:

• Zone 2 fat burning training
• Personalised Zone 2 heart rate guidance based on your VO2 Max results — not generic heart rate zones from your max heart rate. Get real-time haptics on your Apple Watch when you drift in or out of Zone 2.
• New VO2 Max tests: Balke Test, 2.4km / 1.5 miles test
• Support for external heart rate monitors (Garmin, Polar, etc.) and Apple AirPods Pro 3.

Other features:

• Global Leaderboard: compete with verified scores worldwide. Only 20m Beep Test scores with GPS and heart rate validation (Apple Watch or external heart rate monitor) qualify. Compare within your age group and gender, with built-in anti-cheat protection.
• Interval Workouts / HIIT: pre-designed templates (Tabata, 4x4 Nordic, etc.) or build your own. Track intensity, time, and heart rate on iPhone and Apple Watch with built-in timers and progression tracking.
• Enhanced Progression Tracking: separate analytics for tests vs. workouts. View your fitness journey through monthly and yearly progress charts.

All tests and workouts covered:

• Beep Test 20m (also known as the Bleep Test, PACER, Shuttle Run Test)
• Beep Test 15m
• Cooper Test
• Yo-Yo Test
• Balke Test
• 2.4km / 1.5 miles test
• 4x4 Nordic
• Tabata
• 30/30
• EMOM 15 min
• Gibala
• Zone 2 fat burning training

This app is licensed under the standard Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/