VO2Max Hiit workout

Science-based HIIT protocols to boost your VO2Max. Built by athletes, precise to the second.

Increase your VO2Max with science-backed interval training protocols used by elite athletes.

Proven protocols following the latest (or oldest) research papers

Norwegian 4x4, Tabata, Wingate, and conventional HIIT workouts designed to maximize aerobic capacity.

Built and used by athletes that seek to improve their performance (VO2Max or regular calisthenics).

Timers accurate to the second—no 10-second delays that throw off your intervals like most apps.

18% less battery drain than competing apps. Train longer without worrying about your phone dying mid-workout.

Fully Customizable (adjust any protocol or any workout)

Adjust work/rest intervals, rounds, and intensity to match your fitness level and goals.

What you'll find in this app :

VO2Max, HIIT, various interval trainings, Norwegian 4x4, Conventional (60/60) Tabata (20/10), Wingate (30/240), aerobic fitness, endurance training, cardio workouts