VO2 Run

VO2 Run estimates your VO2 max from Apple Watch running workouts using published exercise science formulas — giving you a per-run estimate that actually changes with your effort, pace, and heart rate. This app reads workout data from Apple Health (written by Apple Watch). It does not use iPad or iPhone sensors to take health measurements. All VO2 max values are mathematical estimates using published formulas; citations are visible in the Dashboard Sources section. VO2 Run calculates a fresh estimate for every workout, so you can see how a tempo run compares to an easy jog, track real progress over weeks and months, and understand what drives your number. How it works: - Reads your running workouts, heart rate, and route data from HealthKit - Applies two proven formulas (HR-Drift and Runalyze) to each run independently - Adjusts for elevation using GPS route data and the Minetti energy cost model - Aggregates your best results across recent workouts for a stable overall estimate Features: - Dashboard with your current best estimate and per-formula breakdown - Workout list showing a unique VO2 max for every run, with splits and heart rate data - Trend chart tracking your fitness over time (1 month to 1 year) - Side-by-side comparison with Apple's estimate - Age and sex percentile rankings from Cooper Institute tables 100% private. All processing happens on your iPhone. No accounts, no servers, no tracking. Your health data never leaves your device. Requires Apple Watch workout data in HealthKit.