Norwegian 4x4 Protocol

Name: Norwegian 4x4 Protocol
Price: 5.99 USD
Rating: 4.4 (49 reviews)
Author: Nikita Yampolski

By: Nikita Yampolski

BEST VO2 & HR MAX TRAINING APP

Features & Capabilities

Master the Norwegian 4x4 protocol - the research-backed HIIT method to raise VO2 max and cardio fitness. Precise interval timers & progress tracking. Start today!

Norwegian 4x4 HIIT Timer — Interval Training & VO2 Max

BOOST VO2 MAX WITH NORWEGIAN 4X4 PROTOCOL WORKOUTS

Train smarter with the Norwegian 4x4 protocol, one of the most studied HIIT methods for improving cardiovascular performance and endurance. A precise, distraction-free timer guides every interval so you can focus on the effort.

KEY FEATURES:

Norwegian 4x4 Timer - Precision 4min work / 3min rest cycles
Heart Rate Training - Track 90-95% max HR zones
VO2 Max Improvement - Scientifically proven results
HIIT Interval Timer - Multiple workout protocols
Progress Tracking - Monitor your fitness transformation
Universal Training - Running, cycling, rowing, any cardio, you name it
Offline Ready - No internet required during workouts
Haptics Feedback and Vibrations
Countdown before the start
Customizable Warmup session length
Customizable Cooldown session length

WHAT IS NORWEGIAN 4 BY 4 TRAINING?

The Norwegian 4x4 protocol is a revolutionary HIIT method featuring:

4 intervals of 4 minutes at 90-95% max heart rate
3 minutes active recovery between intervals
Proven results: Increase VO2 max by up to 10% in 8 weeks
Elite approved: Used by professional athletes worldwide

WHY CHOOSE NORWEGIAN 4X4 INTERVAL TRAINING?

PROVEN RESULTS: Sports science research shows significant cardiovascular improvements
BEGINNER FRIENDLY: Complete guide for Norwegian 4x4 workout beginners
CUSTOMIZABLE: Adapt the Norwegian 4 x 4 protocol to your fitness level
COMPREHENSIVE: Includes warm-up, cool-down, and recovery protocols
VALIDATED: Mention in Tim Ferriss' Blog

PERFECT FOR:

Athletes seeking performance gains with Norwegian 4x4 workouts
Fitness enthusiasts wanting efficient HIIT interval training
Anyone improving cardiovascular health through proven protocols
Runners, cyclists, rowers using Norwegian 4x4 interval training

HOW OFTEN NORWEGIAN 4X4?

Our app includes guidance on optimal training frequency and recovery for maximum VO2 max gains.

START YOUR NORWEGIAN 4X4 TRANSFORMATION

Join thousands who have revolutionised their fitness with the Norwegian 4x4 protocol training. Download the ultimate Norwegian 4x4 workout app now!

Download today and start training with the Norwegian 4x4.

User Growth & Download Statistics

App

By:

Nikita Yampolski

Rating:

4.40

(49)

Version:

2.5 Last updated: 2026-06-10

Version code:

886765463

Creation date:

2024-05-01

Compatible devices:

Size:

5.20MB

Price:

5.99

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-30

Compare stats and ranking:

Ranking

# 202,580 ▼ 494

For Developers

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Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Nikita Yampolski

Apple Apps Store

https://apps.apple.com/us/app/norwegian-4x4-protocol/id6499464775

Website:

https://norwegian4x4.com/

User Reviews

This app is essentially a timer, there is no guided instruction, which is difficult as a beginner. Also, when the app went in the background, it closed and kept starting over again during my workout. Do not recommend.

by Er*****, 2026-03-15

I see why a trial period was not an option, I wouldn’t have purchased. I was expecting a linkage to target heart rates and the Apple Watch pulse reading.