PEAKVO2

Train Smarter
Improve Your VO₂ Max

PEAKVO2 helps you build real endurance through structured, science-backed workouts—no fluff, no guesswork.
Your Apple Watch tells you your VO₂ max.
This app helps you improve it.

What it does

Take a Cooper Test to estimate your VO₂ max
Get interval workouts (like Norwegian 4x4, Tabata) based on your level
Track your progress over time—visually, simply
Works with Apple Watch + iPhone

How it looks

PEAKVO2 Training Screen — Train with structured protocols like Norwegian 4x4

PEAKVO2 Tracking Screen — Track your cardio fitness level with real VO₂ max values

PEAKVO2 Progress Screen — Stay on track with weekly workouts and milestones

Try it now (TestFlight)

Free during testing phase. If you subscribe on TestFlight you will not be charged! Feedback welcome—especially if you're training for your first 5K or want to level up your endurance.

Built for

Beginner runners training for their first 5K
Athletes who care about aerobic capacity
Anyone who's tired of fitness apps that just track, but don't coach