Your watch knows your VO2 max. This app makes it higher.

Norwegian 4x4. Tabata. HIIT 30/30. And more.

PEAKVO2 workout list showing Norwegian 4x4, Tabata, and other interval protocols

Pick your protocol

Norwegian 4x438 min
Tabata14 min
HIIT 30/3025 min
Billat 30/3025 min
Ronnestad 30/1538 min
VO2 Max 3x327 min
VO2 Max 5x339 min
Tempo Run40 min

Norwegian 4x4 protocol detail showing warm-up, work, and recovery phases

Warm-up phase with orange screen

Warm-up

Work phase with red screen

Work

Recovery phase with blue screen

Recovery

See your training add up

VO2 max trend: Watch your estimated VO2 max climb as you stay consistent week after week.
Year in review: A heatmap of every session. Gaps are obvious. Streaks are satisfying.
All your workouts count: PEAKVO2 tracks sessions from other apps too, so your full training volume shows up in one place.

PEAKVO2 activity detail showing heart rate and workout summary

No subscription. Ever.

3 workouts free. Then one payment to unlock everything. No recurring charges. No feature gates. You own it.

Start training

Questions? [email protected]