Coming Soon — iOS

Your watch shows the number. We give you the plan.

VO2 Plan turns your VO2 max score into a structured, science-backed training program built for longevity — not race day. Guided intervals, Zone 2 sessions, and real progress tracking.

Free to join. Be first when we launch.

✓ You're on the list. We'll be in touch soon.

8-Week Trend
+2.3
mL/kg/min gained
Next Workout
4x4
Norwegian intervals
Your VO2 Max
38.4
mL/kg/min
Top 42% for your age — Above Average
Wed — Norwegian 4x4HIIT
4 x 4min @ 85-95% HRmax - 3min recovery
Thu — Zone 2 BaseZone 2
50 min - conversational pace - 60-70% HRmax
Sat — 30/30 RepeatsIntervals
20 x 30s hard / 30s easy

You have the score.
You don't have a system.

Most people see their VO2 max on their wrist and hit the same wall:
🤔

"Is this good or bad?"

Your watch shows a number with no context. Is 36 good for a 45-year-old? What percentile? What does it mean for your longevity?

🤷

"How do I improve it?"

No app gives you an actual plan. You're left Googling interval protocols and piecing together advice from Reddit threads and YouTube videos.

📈

"Is what I'm doing working?"

You exercise regularly but can't tell if your cardiovascular fitness is actually improving over weeks and months. You need a trend, not a snapshot.

A training plan that moves
your number up

Three steps. No lab required. No guesswork.

See where you stand

VO2 Plan reads your score from Apple HealthKit and tells you exactly what it means — your percentile for your age and sex, and why it matters for longevity.

Follow a proven plan

Get a personalized weekly schedule based on your fitness level and available days. The app combines Zone 2 base-building with high-intensity intervals using protocols backed by decades of research.

Watch it climb

Track your VO2 max trend over weeks and months alongside resting heart rate, HRV, and recovery. The plan adapts as you improve — progressively raising your aerobic ceiling.

Not just one workout.
A complete training system.

VO2 Plan uses a polarized 80/20 approach — 80% low-intensity base building, 20% high-intensity intervals — rotating across proven protocols.
Build-Up Protocol

5x3 Intervals

5 x 3 min @ 90-95% HRmax - 3 min recovery

Shorter, sharper intervals at slightly higher intensity. An excellent stepping stone for building up to the 4x4, or a variation to break through plateaus.

Variety Protocol

30/30 Repeats

12-20 x 30s hard / 30s easy

Short bursts that accumulate massive time near VO2 max because your heart rate never fully drops between efforts. Feels more manageable — perfect for building consistency.

Foundation

Zone 2 Base Sessions

45-60 min @ 60-70% HRmax - conversational pace

The essential 80% of your training. Builds mitochondrial density and fat oxidation capacity. Without this aerobic foundation, high-intensity work can't deliver its full benefit.

Everything your VO2 max
score has been missing

Not just a dashboard. A training companion.

Longevity Context

Your percentile ranking for your age and sex, plus what the research says your score means for longevity and long-term health. Not just a number — a story.

Adaptive Training Plan

Periodized schedule that adjusts to your progress. Base, build, and peak phases with automatic deload weeks. Miss a session? The plan recalibrates.

Guided Workout Timer

Real-time heart rate zones, audio cues, and haptic feedback for every interval. Press start and follow along — the app tells you when to push and when to recover.

Zone 2 Coaching

Live heart rate feedback during base sessions so you know instantly if you're in the aerobic sweet spot, going too hard, or not pushing enough.

Multi-Metric Tracking

VO2 max trend over time, plus resting heart rate, HRV, and heart rate recovery. The full picture of your cardiovascular fitness, all from your existing wearable data.

Smart Progression

Hit every interval in zone? Next session gets harder. Fall short? The plan dials back. Your training matches your actual fitness — not a static template.

7-13%

VO2 max improvement in 8 weeks with the Norwegian 4x4 protocol

2x / week

Optimal interval frequency — more isn't better, consistency is

80/20

Polarized split used by elite endurance athletes worldwide

Other apps show you a number.
We show you what to do about it.

There are apps that track and apps that train. Only VO2 Plan does both.
What you needWearables aloneTraining appsOther VO2 appsVO2 Plan
Understand your VO2 max scoreNumber onlyBasic
Longevity context for your age
Structured plan to improve itAthlete-focused
Guided interval timer with HR zonesGeneric
Multiple science-backed protocols1 protocol
Adaptive progressionManual
Built for longevity, not racing

Stop staring at the number.
Start improving it.

Join the waitlist for early access to VO2 Plan on iOS. We'll notify you the moment it launches.

No spam. Unsubscribe anytime.

✓ You're on the list. We'll be in touch soon.