VO2 Max Trainer: HIIT, Zone 2

VO2 MAXimizer: Take your fitness to the next level with this VO2 Max Trainer app, your all-in-one solution to measure, track, & improve Your VO2 Max.

Whether you're an athlete, or fitness enthusiast with this VO2 MAXimizer app you can:
- Accurately measure your cardiovascular fitness and VO₂ max with 5 internationally recognized fitness tests: Beep Test (20m & 15m), YoYo Test (YYIR1 + YYIR2), Cooper Tests, Balke Test & 1.5 miles/2.4km Test.
- Challenge yourself with different HIIT trainings (for example tabata, 4x4 nordic, gibala, or you can create your own fully customized HIIT)
- Improve your VO2 Max and burn fat with Zone 2 training
- Track your progress and compare yourself to benchmarks or a global leaderboard.

All of that, both on your iPhone and on your Apple Watch.

PROFESSIONAL FITNESS TESTING IN YOUR POCKET:
Experience the precision of lab-grade fitness assessment right on your iPhone and Apple Watch with the Beep Test, Yo-Yo Test, Cooper Test, Balke Test & 1.5 miles/2.4km Test

SEAMLESS APPLE WATCH EXPERIENCE
Leave your iPhone behind - your Apple Watch provides perfect timing through haptic feedback and audio cues. Monitor your heart rate in real-time and sync all your results automatically across devices.

TRACK YOUR JOURNEY
Every test and workouts is automatically saved. 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 seamlessly integrates into your overall health picture.

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

What's New in V4:
-Training readiness scoring: combines your HRV, RHR, sleep, and recent load into a daily 1-100 score. Tells you when to push vs. when to back off.
- Fitness age: calculates your cardiovascular age from VO2 max + lifestyle factors.
- Better workout analysis: effort scores, zone breakdowns, pace analysis. Actually useful post-run data.
- Race predictions: gives you projected times for 5K through marathon based on your current fitness.
- Watch app redesign: rebuilt from scratch. Better screens during tests, cleaner metrics display.
- 3 months training plan, tailored to your current fitness level, in order to boost your Vo2 Max.
- Personalized Zone 2 heart rate guidance, based on your VO2 Max results, not generic heart rate zones based on your max heart rate. With your Apple Watch, get real-time haptics when you're in or out of Zone 2. Zone 2 (fat burning) training.
- Support for external heart rate monitor (garmin, polar etc.).

Other features:
- Global Leaderboard
Compete with verified scores users worldwide! Only 20m Beep Test scores with GPS and heart rate validation (with an apple watch or an external heart rate monitor) make it to the leaderboard. Compare your performance within your age group and gender, with built-in anti-cheat protection ensuring fair competition.
- Interval Workouts/HIIT
New HIIT and interval training with pre-designed templates (tabata, 4x4 nordic etc.) or create your own custom workouts. Track intensity time and heart rate data on both iPhone and Apple Watch with built-in timers and progression tracking.
- Enhanced Progression Tracking
Analytics with separate tracking for tests vs. workouts. View your fitness journey through monthly and yearly progress charts.

All the tests and workouts covered:
- Beep test 20m & 15m (also called Bleep test, PACER, shuttle run test)
- Cooper Test
- Yoyo Test (YYIR1 & YYIR2)
- Balke Test
- 1.5 miles / 2.4km 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/