OutPerform Health Tracker vs VO2 Max Tracker

Know your body. Then outperform. OutPerform turns the health data you already have into clear daily guidance — so you know when to push, when to rest, and when your mind is sharpest. Everything is computed privately on your iPhone using transparent, published sports-science methods. No accounts. No servers. No subscription. Connect Apple Health or Google Health, and OutPerform reads your heart rate, HRV, sleep, breathing, blood oxygen, temperature and workouts to give you: RECOVERY A morning recovery score from your overnight HRV (RMSSD / DFA-α1), resting heart rate, breathing rate and sleep — each measured against your own personal baseline. STRAIN & TRAINING LOAD Cardiovascular load on a 0–21 scale, plus acute-to-chronic workload ratio and training monotony, so you build fitness without overreaching. SLEEP Sleep stages, efficiency and a performance score, a dynamic nightly sleep-need target that rises with the day's strain, and a smart bedtime recommendation. COGNITIVE FOCUS Predict how "locked in" you'll be hour by hour and find your peak deep-work windows — then calibrate it to yourself with a one-minute reaction test. READINESS One daily number that folds recovery, last night's sleep and your training-load balance into a clear go / steady / rest call. HEALTH MONITORING Track blood oxygen, respiratory rate, skin temperature and VO₂ max against your baseline, with an overnight breathing-disruption (ODI) screening signal. PLUS - Scrubbable 7/30/90-day trends for every metric - A tap-through explanation of how each score is calculated - Home-screen widgets - Export all your data, or wipe it, any time PRIVATE BY DESIGN Your health data never leaves your phone. OutPerform has no backend and no account — every score is computed on-device, and nothing is ever sold or shared. Connections to Apple Health and Google Health are read-only. GROUNDED IN SCIENCE No black boxes. OutPerform uses peer-reviewed methods — RMSSD/DFA-α1 HRV, Banister TRIMP, acute:chronic workload ratio, the Three-Process Model of alertness, Gellish max-HR, Åstrand VO₂ and more — and shows you the formula behind every number. Free to use. — OutPerform is not a medical device and does not diagnose, treat or prevent any condition. Screening features are informational only and are not a substitute for professional medical advice.

Your VO2 Max, tracked the way Apple designed it to be. VO2 Max Tracker turns the fitness data your Apple Watch already collects into clear trends, meaningful milestones, and real motivation — no guesswork, no spreadsheets. WHY VO2 MAX MATTERS VO2 Max is the single best predictor of cardiovascular fitness. Apple Watch estimates it automatically from your outdoor walks and runs — this app shows you what it means and where you're headed. FEATURES • Live VO2 Max trend, fitness level, and percentile for your age and sex • Automatic record detection, with a celebration the moment you hit a personal best • Every workout linked to its exact VO2 Max impact — see which runs actually move the needle • Weight and sleep trends alongside your cardio fitness, all in one place • Smart notifications when you improve, trend down, or hit a streak — capped at once a day, never spammy • Full history and long-term trend charts, not just today's number BUILT FOR APPLE HEALTH Works with the VO2 Max, workout, heart rate, sleep, and weight data already in Apple Health. Nothing to set up beyond granting access once. PRIVATE BY DESIGN Your health data never leaves your device. No account, no cloud sync, no analytics, no ads. VO2 Max Tracker reads from Apple Health locally and stays there — that's the whole architecture. REQUIRES APPLE WATCH VO2 Max readings are generated by Apple Watch during outdoor walks or runs. An iPhone alone cannot produce this data — that's an Apple Health limitation, not ours. VO2 Max Tracker is not a medical device and does not provide medical advice. Consult a professional for health decisions. Terms of Use (EULA): https://www.apple.com/legal/internal/terms-en.html