Best N4x4 alternatives: apps like N4x4

10+ similar apps compared and reviewed

4.9 avg rating

10 free apps

Updated October 2026

Jan van Rensburg

💪 Health & Fitness

N4x4 is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to N4x4

#1

Boost VO2 - Norwegian 4x4 by Derinbogaz Ventures

Improve your endurance!

Editor's Choice

💪 Health & Fitness

0.0(0 ratings)

Free

Boost VO2 - Norwegian 4x4 screenshot 1

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Boost VO2 - Norwegian 4x4 screenshot 4

#2

Norwegian 4x4 workout by Alice Winthrop

Interval timer + HR zone guide

Strong Contender

💪 Health & Fitness

5.0(3 ratings)

FreeIn-App Purchases

Norwegian 4x4 workout screenshot 1

Norwegian 4x4 workout screenshot 2

Norwegian 4x4 workout screenshot 3

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This app guides you through a structured interval workout, calculating your target heart rate zones and providing real-time coaching. It features a simple warm-up, four intense 4-minute intervals with recovery periods, and a cool-down, all managed by an integrated timer. Track your progress and sync data with Apple Health.

#3

Norwegian 4x4 HIIT - Myworkout by Myworkout AS

Improve VO2max & heart health

Worth Considering

💪 Health & Fitness

4.7(19 ratings)

FreeIn-App Purchases

Norwegian 4x4 HIIT - Myworkout screenshot 1

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This app offers a science-backed cardio exercise program designed to improve health and prevent lifestyle diseases. It focuses on efficient workouts, measuring VO2 max with high accuracy, and integrating with popular fitness trackers. A premium subscription unlocks full features.

More apps like N4x4

Norwegian 4x4 HIIT Trainer

💪 Health & Fitness

Compare with N4x4

Tabata & HIIT Timer - PEAKVO2

Tabata & HIIT Timer - PEAKVO2

Tabata & HIIT Timer - PEAKVO2

Interval Training & Endurance

This app provides science-backed interval training protocols to improve cardiovascular fitness and long-term health. It guides users through warm-ups, work intervals, and cool-downs with customizable timers and activity tracking.

Science-backed interval protocols (Norwegian 4x4, Tabata, HIIT)Color-coded workout timer with phase transitionsActivity tracking with streaks and progress

💪 Health & Fitness

free with in-app purchases

Compare with N4x4

Interval Training Meter

This app guides you through High Intensity Interval Training (HIIT) workouts using your heart rate as a guide. It sequences exercise between high and low intensity intervals, displaying your progress on a speedometer-style dial. Warning chimes alert you if your heart rate falls outside the target zone.

High Intensity Interval Training (HIIT) guidanceHeart rate monitoring based on MHR percentageSpeedometer-style heart rate dial

💪 Health & Fitness

Compare with N4x4

Norwegian 4x4 Coach

Norwegian 4x4 Coach

Norwegian 4x4 Coach

Heart-rate interval coaching

💪 Health & Fitness

Compare with N4x4

Norwegian 4x4 Heart Rate

Norwegian 4x4 Heart Rate

Norwegian 4x4 Heart Rate

VO2max interval timer with HR

This app guides you through the Norwegian 4x4 VO2max interval training protocol using your Bluetooth heart rate monitor. It provides real-time audio cues to keep you in your target heart rate zones during work and rest intervals.

Bluetooth heart rate monitor supportVO2max interval protocol guidanceLive heart rate gauge

💪 Health & Fitness

Compare with N4x4

VO2Max Training

VO2Max Training

VO2Max Training

Improve your VO2 Max

Improve your cardiovascular fitness with science-backed training protocols and real-time coaching. Track your progress, visualize trends, and receive AI-powered insights to enhance your body's oxygen utilization for better health and longevity.

Science-backed training protocolsReal-time Apple Watch coachingProgress tracking and visualization

💪 Health & Fitness

Compare with N4x4

Ramp4x4: VO2 Max Trainer

Ramp4x4: VO2 Max Trainer

Ramp4x4: VO2 Max Trainer

Norwegian 4x4 interval timer

This app guides you through high-intensity interval training sessions designed to improve your VO2 max. It offers live heart-rate feedback and timing for your workouts, with options for both free and premium training plans.

Norwegian 4x4 interval workoutsLive heart-rate guidanceApple Watch integration

💪 Health & Fitness

Compare with N4x4