# OxyScore: VO2max & Fitness Age — Tests, intervals, strength log > VO2max and strength training tracker with fitness age and longevity focus. (iPhone/iPad app by KIRILL PUSTOVALOV.) - Source: https://appshunter.io/ios/app/oxyscore-vo2max-and-fitness-age/id6794872579 (this page in markdown: same URL + `.md`) - Developer: [KIRILL PUSTOVALOV](https://appshunter.io/developer/6794872581) - Category: Health & Fitness - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings - Age rating: 17+ - Requires: iOS 26.0 · 6 MB - Languages: American English - Released: 2026-08-25 - Data updated: 2026-09-10 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/oxyscore-vo2max-and-fitness-age/id6794872579/reviews.md ## What is OxyScore? Two things you can train are tied to a longer life: your VO2max, the fitness measure most linked to longevity, and your strength. OxyScore keeps both in one place. Measure your VO2max properly, train it on your wrist, and keep the record of what you lift beside it. MEASURE IT PROPERLY Three guided field tests — Cooper, Rockport walk and an indoor max effort — turn one real effort into a measured VO2max, with its accuracy range and the study behind it shown in the app. SEE WHAT IT MEANS • Fitness age — the age your VO2max says you are — with your percentile (FRIEND registry) • Your fitness category, from a 122,007-person study (Mandsager 2018) • Heart-rate recovery, resting heart rate and HRV, never blended into a score TRAIN IT ON APPLE WATCH Five cited protocols — Norwegian 4×4, VO2max 4×3, 10-20-30, Billat 30-30 and Zone 2 — coached live on your wrist with haptic cues. A hard interval asks for at least 90% of your max heart rate — a floor to reach, not a cap. Your numbers show on iPhone; guided sessions need Apple Watch. STRENGTH, THE OTHER HALF Strength training is associated with lower all-cause mortality, and the largest association of all is for people who do it alongside aerobic training (Momma 2022). Keep your own exercise list and log reps and weight. Every exercise shows your last session's top set, your estimated max and whether it moved, so you arrive knowing the weight to beat. A record you keep, not a score the app awards. YOUR WEEK, PLANNED FOR YOU One adaptive weekly goal, sized to your fitness, stepping up when you're ready; a rough week gets a real deload. On supported iPhones, Apple Intelligence writes it from verified numbers. IT COMPOUNDS Weekly streaks, 34 achievements, a training level only real work moves, monthly Longevity Reports. PRIVATE BY DESIGN Your health data never leaves your devices. No accounts, no tracking, no analytics — everything computes on-device from Apple Health, where workouts save back. OxyScore Membership covers measurement, coaching and progress, with Family Sharing. It renews automatically unless canceled at least 24 hours before the period ends. Free trials are for new subscribers, one per Apple ID; cancel any time in Settings. OxyScore is a fitness app, not a medical device, and does not diagnose or treat any condition. Consult your physician before beginning vigorous exercise. Terms: https://oxyscore.fit/terms · Privacy: https://oxyscore.fit/privacy ## Key features - VO2max measurement via field tests - Guided VO2max training on Apple Watch - Strength training log with rep and weight tracking - Fitness age and percentile calculation - Heart rate recovery and resting heart rate monitoring - Adaptive weekly workout planning - Longevity reports and achievements ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | OxyScore Yearly | $29.99 | per year | | OxyScore Monthly | $4.99 | per month | ## Frequently asked questions about OxyScore ### What is OxyScore's primary focus? OxyScore focuses on measuring and training VO2max and strength, two key metrics linked to longevity. It provides fitness age, workout logs, and progress tracking. ### How does OxyScore measure VO2max? OxyScore offers three guided field tests: Cooper, Rockport walk, and an indoor max effort test. The app displays the accuracy range and the scientific study behind each measurement. ### Can I train my VO2max with OxyScore? Yes, OxyScore provides five cited training protocols coached live on your Apple Watch with haptic cues, including Norwegian 4x4 and Zone 2 training. ### How does OxyScore handle strength training? You can maintain a personal exercise list and log your reps and weight for each exercise. The app shows your last session's top set, estimated max, and progress to help you beat previous records. ### What subscription plans are available for OxyScore? OxyScore offers a monthly subscription for $4.99 with a 7-day free trial, and a yearly subscription for $29.99 with a 14-day free trial. Subscriptions renew automatically unless canceled. ### Is OxyScore available on multiple devices? OxyScore is designed for iPhone and Apple Watch. Guided sessions specifically require an Apple Watch, while data and planning are visible on supported iPhones. ### How does OxyScore ensure user privacy? OxyScore is designed for privacy, with all health data computed on-device and never leaving your devices. It does not require accounts, tracking, or analytics, and workouts save back to Apple Health. ### What is the age rating for OxyScore? OxyScore has an age rating of 17+. Users are advised to consult a physician before beginning vigorous exercise. ## Version history (last 3 releases) ### 1.2 — 2026-09-07 A Strength tab: keep your own list of exercises, log reps and weight, and see your last session's top set, whether it moved, and your estimated max. The Dashboard carries the exercise at the top of your Strength list, beside your VO2max. ### 1.1 — 2026-09-01 Compose your own week — set your hard sessions and Zone 2 minutes yourself. Anything you've already done still counts. Your VO2max can now ignore Apple's passive estimates and use only what you've measured. On by default. On your wrist: elapsed time and intervals completed mid-session, plus press-to-start from the Action button on Ultra. Also: Bug fixes. ### 1.0 — 2026-08-26 No release notes. ## More apps by KIRILL PUSTOVALOV - [HSA Wallet: Medical Receipts](https://appshunter.io/ios/app/hsa-wallet-medical-receipts/id6797353234) All apps by KIRILL PUSTOVALOV: https://appshunter.io/developer/6794872581 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*