# Buteyko Pro vs Norwegian 4x4 Protocol

The clearest difference is price: Buteyko Pro at Free against Norwegian 4x4 Protocol's $5.99. Buteyko Pro also leads on rating (4.8 vs 4.3) and review sentiment (50% vs 25%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Buteyko Pro is free to download; Norwegian 4x4 Protocol costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Buteyko Pro holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 45 and 55 respectively. Written reviews point the same way: 50% of Buteyko Pro's written reviews are positive against 25% of Norwegian 4x4 Protocol's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Buteyko Pro | Norwegian 4x4 Protocol |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[4.8 (45 ratings)](https://appshunter.io/ios/app/buteyko-pro/id875200706/reviews)** | [4.3 (55 ratings)](https://appshunter.io/ios/app/norwegian-4x4-protocol/id6499464775/reviews) |
| Number of ratings | 45 | **55** |
| Positive reviews | **50.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 74 MB | 5 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Eduard Reuvers](https://appshunter.io/developer/602976069) | [Nikita Yampolski](https://appshunter.io/developer/1441915166) |

## What reviewers say

### Buteyko Pro

[App page](https://appshunter.io/ios/app/buteyko-pro/id875200706)

Learn and practice the Buteyko breathing method with guided exercises and progress tracking. This app offers a progressive training system with audio instructions, tips, and timers to improve your breathing and overall health. It integrates with courses and webinars for personalized instruction.

**Highlights:** Progressive Buteyko training system, 51 levels with audio instructions, Personal breathing charts, Breathing exercise history, Health indicator tracking, Share progress with instructors

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Norwegian 4x4 Protocol

[App page](https://appshunter.io/ios/app/norwegian-4x4-protocol/id6499464775)

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.

**Highlights:** Precision 4min work / 3min rest cycles, Heart rate zone tracking (90-95% max HR), VO2 Max improvement tracking, Multiple HIIT workout protocols, Progress monitoring, Universal cardio training support, Offline functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Buteyko Pro free?

Buteyko Pro is free to download, with no in-app purchases.

### Is Norwegian 4x4 Protocol free?

Norwegian 4x4 Protocol costs $5.99, with no in-app purchases.

### Which has better reviews, Buteyko Pro or Norwegian 4x4 Protocol?

Buteyko Pro is rated higher. Buteyko Pro averages 4.8 out of 5 from 45 ratings, while Norwegian 4x4 Protocol averages 4.3 from 55 ratings.

### Do Buteyko Pro or Norwegian 4x4 Protocol have ads?

Neither Buteyko Pro nor Norwegian 4x4 Protocol shows ads.

### Which is updated more often, Buteyko Pro or Norwegian 4x4 Protocol?

Buteyko Pro ships an update every 3 weeks, and Norwegian 4x4 Protocol every 3 weeks. Most recently, Buteyko Pro was updated on October 21, 2026 and Norwegian 4x4 Protocol on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*