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Best 4X4 Hiit Apps

250+ iOS apps curated and reviewed

4.1 avg rating
17 free apps
Updated August 2026

Whether you're new to 4x4 hiit or looking for an upgrade, our curated collection of 250+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top 4X4 Hiit Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
14x4 HIIT4x4 HIITFree—NoNoMay 2026
2VO2 Flow: Norwegian 4x4 TimerVO2 Flow: Norwegian 4x4 TimerFree—YesYesJul 2026
3Workouts+ HIIT Interval TimerWorkouts+ HIIT Interval TimerFree4.7★ (2.1K)NoNoAug 2026
4HIIT 4x4HIIT 4x4$9.991.0★ (1)NoNoJul 2026
5Norwegian 4x4 HIIT - MyworkoutNorwegian 4x4 HIIT - MyworkoutFree4.7★ (15)NoYesSep 2026
6HIIT 4x4 LiteHIIT 4x4 LiteFree5.0★ (2)NoNoMay 2026
7Norwegian 4x4 workoutNorwegian 4x4 workoutFree—NoYesAug 2026
8Just HIIT!Just HIIT!Free—NoNoMay 2026

Top Picks for 4X4 Hiit

Workouts+ HIIT Interval Timer#3

Workouts+ HIIT Interval Timer by Anuj Seth

Programmable gym workout timer
Worth Considering
💪 Health & Fitness
4.7😊(2.1K ratings)
FreeIn-App Purchases
Workouts+ HIIT Interval Timer screenshot 1
Workouts+ HIIT Interval Timer screenshot 2
Workouts+ HIIT Interval Timer screenshot 3
Workouts+ HIIT Interval Timer screenshot 4
Workouts+ HIIT Interval Timer screenshot 5

Design custom workout routines with integrated music, voice cues, or audio beeps. This app helps serious fitness enthusiasts track their progress without needing to constantly check a screen or notes. It offers pre-loaded exercise plans for various popular workouts.

What We Love

  • 👍 Customizable workouts
  • 🚀 Easy to use
  • 🎶 Ability to play own music
  • 🗣️ Voice prompts for exercises

Room to Improve

  • 🔒 Restricted editing options without paying for pro version
  • 🐛 Occasional app crashes
  • 🔍 Difficulty finding edit option

More 4X4 Hiit apps to explore

4
HIIT 4x4
HIIT 4x4
HIIT 4x4
Interval Training Meter
$9.99

This app guides you through High Intensity Interval Training (HIIT) workouts using your heart rate as a percentage of your Maximum Heart Rate (MHR). It features a speedometer-style dial to monitor your heart rate zones and provides chimes to keep you in target.

Heart rate zone monitoringSpeedometer-style dialWarning chimes for out-of-zone heart rate
💪 Health & Fitness
(1)
paid
5
Norwegian 4x4 HIIT - Myworkout
Norwegian 4x4 HIIT - Myworkout
Norwegian 4x4 HIIT - Myworkout
Improve VO2max & heart health
Free

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.

Time-efficient cardio workoutsVO2 max measurement and improvementPrevention of lifestyle diseases
💪 Health & Fitness
(15)
freemium
6
HIIT 4x4 Lite
HIIT 4x4 Lite
HIIT 4x4 Lite
Interval Training Meter
Free

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
(2)
free
7
Norwegian 4x4 workout
Norwegian 4x4 workout
Norwegian 4x4 workout
Interval Training Timer
Free
💪 Health & Fitness
(0)
8
Just HIIT!
Just HIIT!
Just HIIT!
FREE exercise and HIIT workout
Free
💪 Health & Fitness
(0)
9
Norwegian 4x4 Protocol: Boreas
Norwegian 4x4 Protocol: Boreas
Norwegian 4x4 Protocol: Boreas
Interval training for VO2 max
Free

This app guides you through the Norwegian 4x4 interval training protocol to improve your VO2 max and cardiovascular fitness. It offers customizable warm-up and cooldown durations, voice guidance for intervals, and integrates with Apple Watch for heart rate and calorie tracking.

Norwegian 4x4 workoutsVoice guidance for intervalsApple Watch heart rate tracking
⚽ Sports
(56)
freemium
10
Ramp4x4: VO2 Max Trainer
Ramp4x4: VO2 Max Trainer
Ramp4x4: VO2 Max Trainer
Norwegian 4x4 Workouts
Free
💪 Health & Fitness
(0)
11
HIIT School
HIIT School
HIIT School
HIIT School mobile
Free
💪 Health & Fitness
(0)
12
The HIIT Company
The HIIT Company
The HIIT Company
by The HIIT Company International Ltd
Free
💪 Health & Fitness
(0)
13
HiiT - Training Timer
HiiT - Training Timer
HiiT - Training Timer
Simple HIIT Timer for training
Free
💪 Health & Fitness
(0)
14
HIIT Station
HIIT Station
HIIT Station
by HIIT Station pty ltd
Free
💪 Health & Fitness
(0)
15
NorthPace: HIIT & Breath
NorthPace: HIIT & Breath
NorthPace: HIIT & Breath
4x4, Guided Breath & Rucking
Free
$0.99 | 100% OFF
💪 Health & Fitness
(0)
16
Norwegian 4x4 Protocol
Norwegian 4x4 Protocol
Norwegian 4x4 Protocol
BEST VO2 & HR MAX TRAINING APP
$5.99
$6.99 | 14% OFF

This app guides you through the effective Norwegian 4x4 interval training method to boost cardiovascular performance and endurance. It features a precision timer, heart rate zone tracking, and progress monitoring for scientifically proven results.

Precision 4min work / 3min rest cyclesHeart rate zone tracking (90-95% max HR)VO2 Max improvement tracking
💪 Health & Fitness
(50)
paid
17
Hiit
Hiit
Hiit
by Dependency
Free
💪 Health & Fitness
(0)
18
HIIT (Watch) Timer
HIIT (Watch) Timer
HIIT (Watch) Timer
Simple interval timer for HIIT
$3.99

This app offers a straightforward interval timer designed for Apple Watch, iPhone, and iPad. It features a clean interface, live heart rate monitoring, haptic feedback, and detailed workout summaries, seamlessly integrating with the Health app.

Apple Watch independent appLive heart rate monitoringHaptic feedback and audio alerts
💪 Health & Fitness
(12)
paid
19
The Playground by HIIT School
The Playground by HIIT School
The Playground by HIIT School
by HIIT School Inc.
Free
💪 Health & Fitness
(0)
20
Hiitmi HIIT Timer
Hiitmi HIIT Timer
Hiitmi HIIT Timer
HIIT, Interval Timer, Tabata
Free

This interval timer app allows users to create and share custom high-intensity interval training (HIIT) workouts. Enjoy training with your favorite music or podcasts, guided by a motivating voice. Track your progress with simple statistics.

Unlimited custom timer creationWorkout sharing with friendsMusic and podcast integration
💪 Health & Fitness
(0)
free

FAQ about 4X4 Hiit

Are there free 4x4 hiit apps for iPhone?
Yes — 17 of the top 4x4 hiit apps we rank are free to download, including 4x4 HIIT and VO2 Flow: Norwegian 4x4 Timer.
4x4 HIIT has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ 4x4 hiit apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.

Related searches

norwegian 4x4 hiit - myworkout