# Advanced Buteyko vs KYZN

The clearest difference is rating: Advanced Buteyko at 4.1 against KYZN's 1.0. Advanced Buteyko also leads on review sentiment (71% vs 48%) and ratings volume (30 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Advanced Buteyko holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Advanced Buteyko has 30 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 71% of Advanced Buteyko's written reviews are positive against 48% of KYZN's.

Advanced Buteyko ships an update every 2 weeks, KYZN fortnightly. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Advanced Buteyko | KYZN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (30 ratings)](https://appshunter.io/ios/app/advanced-buteyko/id989630827/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/kyzn/id1596314646/reviews) |
| Number of ratings | **30** | 2 |
| Positive reviews | **70.8% of reviews** | 48.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 131 MB | 77 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eduard Reuvers](https://appshunter.io/developer/602976069) | [PT. Akademi Fambam Indonesia](https://appshunter.io/developer/1596314648) |

## What reviewers say

### Advanced Buteyko

[App page](https://appshunter.io/ios/app/advanced-buteyko/id989630827)

Learn advanced breathing techniques with guided levels and spoken instructions. Track your progress and see how your heart rate is affected by your breathing. Suitable for all levels, with advanced exercises for course participants.

**Highlights:** 61 Buteyko Breathing levels, Spoken instructions, Heart rate tracking integration, Guided by certified instructors, Progressive skill development

**Features:** macOS Compatibility

**In-app purchases:** none


### KYZN

[App page](https://appshunter.io/ios/app/kyzn/id1596314646)

This app provides access to a comprehensive sports, fitness, and wellness facility. It features an Olympic swimming pool, yoga studio, courts for tennis and badminton, a basketball court, and a fully equipped gym. Memberships and daily rates are available, with options for adults, kids, and families.

**Highlights:** Olympic swimming pool, Yoga studio, Tennis and badminton courts, Basketball court, Fully equipped gym, Fitness and spin studios, Wet & dry playground

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Advanced Buteyko free?

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

### Is KYZN free?

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

### Which has better reviews, Advanced Buteyko or KYZN?

Advanced Buteyko is rated higher. Advanced Buteyko averages 4.1 out of 5 from 30 ratings, while KYZN averages 1.0 from 2 ratings.

### Do Advanced Buteyko or KYZN have ads?

Neither Advanced Buteyko nor KYZN shows ads.

### Which is updated more often, Advanced Buteyko or KYZN?

Advanced Buteyko ships an update every 2 weeks, and KYZN fortnightly. Most recently, Advanced Buteyko was updated on October 29, 2026 and KYZN on October 20, 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.*