# NTX Apnea — NTX freedive training system

> Freediving and spearfishing training system for breath-hold, awareness, and relaxation. (iPhone/iPad app by Mariusz Kociubinski.)

- Source: https://appshunter.io/ios/app/ntx-apnea/id1568508146 (this page in markdown: same URL + `.md`)
- Developer: [Mariusz Kociubinski](https://appshunter.io/developer/1568496751)
- Category: Health & Fitness
- Price: Free
- Rating: 4.90/5 from 62 App Store ratings · 4 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.0 · 64 MB
- Languages: American English
- Released: 2021-07-18
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ntx-apnea/id1568508146/reviews.md

## What is NTX Apnea?

NTX Apnea is a complete freediving and spearfishing training system for improving breathold, awareness and relaxation.  Exercises target different aspects of training (e.g. dive reflex, breathold under stress, CO2 tolerance, self awareness, etc.) and support a wide range of difficulty making it an ideal tool for apneists of any experience level.  Exercises are richly supported  with detailed instructions along with expert audio and video guidance. 

SUPPORT:
Email:  kociubin+ntxapnea@gmail.com with questions, suggestions or bug reports. 

BREATHOLD TRAINING EXERCISES:
-Halfway Holds
-Lazy Tables
-Spanish Steps
-Crazy Tables
-Zany Walks
-Oxy Walks
-Wonky Square

BREATHING AND RELAXATION EXERCISES:
-Guided Breathe-up
-Coherence Breathing
-Box Breathing

FEATURES:
-Variety of exercises (e.g. easy, medium, pro, indoor/outdoor)
-Customization and personalization of parameters/settings
-In app exercise history
-Exercise suggestions
-Automatic increasing of difficulty based on performance improvements
-Built in pre-exercise warmup/breathe-up
-Audio guidance
-Detailed instructions and videos

## Key features

- Breath-hold training exercises
- Breathing and relaxation exercises
- Customizable training parameters
- In-app exercise history
- Automatic difficulty adjustment
- Audio and video guidance

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/ntx-apnea/id1568508146/reviews.md

### 5/5 — Everything we ask for

*2023-09-22*

This app is very well made, and does everything we ask (and asked!) for. Thank you for taking into account my request and adding the history export tool. 🥰

### 5/5 — The best

*2022-02-08*

I’ve used most of the apps out there for apnea training and this in my opinion is the best.  It’s presently free compared to many, has more features, and is more user friendly.  I’d gladly pay for the app or if there was an option to submit a payment to support development, I’d do that.

**Developer response:** Thank you for your kind review.  I'm glad you're enjoying the app!

### 5/5 — Amazing App!!

*2021-08-17*

This app so so useful yet so simple. I love the variety of different exercises I can do!

### 5/5 — Amazing app

*2021-08-09*

This app has revolutionized the way i do my pre water breathing routine. I can now practice on my breathing without counting and can try differently challenged exercises to help better myself.

## Frequently asked questions about NTX Apnea

### What exercises does NTX Apnea offer for breath-hold training?

NTX Apnea includes a variety of breath-hold exercises such as Halfway Holds, Lazy Tables, Spanish Steps, Crazy Tables, Zany Walks, Oxy Walks, and Wonky Square. These exercises are designed to target different aspects of breath-hold training for apneists of all levels.

### Does NTX Apnea offer guidance for breathing and relaxation?

Yes, NTX Apnea provides guided breathing and relaxation exercises including Guided Breathe-up, Coherence Breathing, and Box Breathing. These are crucial for preparing for dives and improving overall awareness and calm.

### Can NTX Apnea adapt to my skill level?

NTX Apnea features automatic increasing of difficulty based on your performance improvements. It also offers a variety of exercises suitable for different levels, from easy to pro, and indoor/outdoor training.

### What kind of support does NTX Apnea provide?

The app offers detailed instructions and expert audio and video guidance for all exercises. Users can also email kociubin+ntxapnea@gmail.com with questions, suggestions, or bug reports for support.

### How does NTX Apnea track my progress?

NTX Apnea includes an in-app exercise history feature that allows you to track your training sessions. This history helps monitor your performance improvements and training consistency over time.

### Is NTX Apnea available on multiple devices?

NTX Apnea is supported on iPhone, iPad, and iPod devices. It is designed to be a versatile training tool accessible across Apple's mobile ecosystem.

### How often is NTX Apnea updated?

The latest version of NTX Apnea is 1.0.40, last updated on December 23, 2025. While specific update frequency isn't detailed, this indicates ongoing development and support for the application.

### What is the age rating for NTX Apnea?

NTX Apnea has an age rating of 17+. This is likely due to the nature of freediving and spearfishing, which require maturity and understanding of safety protocols.

## Version history (last 5 releases)

### 1.0.40 — 2025-12-23

Behind the scenes fixes and improvements.

### 1.0.39 — 2025-10-28

Fix for Spanish Tables not ending automatically after the last round.

### 1.0.38 — 2025-08-09

Behind the scenes optimizations and improvements.

### 1.0.37 — 2024-03-25

FEATURE:  Added Progressive Slowdown to the breathing exercises (it's off by default but configurable in Settings for each exercise).  This allows the beats to gradually increase up to the desired length.  
ENHANCEMENT:  Re-worked the UI for Zany Walks to be more consistent with other exercises.

### 1.0.36 — 2024-03-15

Performance and under-the-hood improvements

## Apps similar to NTX Apnea

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Freediving Apnea Trainer](https://appshunter.io/ios/app/freediving-apnea-trainer/id1216253186) | 4.7 (256) | Free | Health & Fitness |
| [Dive Hard Freediving Trainer](https://appshunter.io/ios/app/dive-hard-freediving-trainer/id1615137732) | 4.9 (9) | Free | Health & Fitness |
| [Apnea FreeDive Breath Hold](https://appshunter.io/ios/app/apnea-freedive-breath-hold/id1188724407) | 4.5 (26) | Free | Health & Fitness |
| [Freediving hold breath + Apnea](https://appshunter.io/ios/app/freediving-hold-breath-plus-apnea/id6462336236) | — | Free | Health & Fitness |
| [STAmina Apnea Coach](https://appshunter.io/ios/app/stamina-apnea-coach/id6446412971) | 3.0 (2) | Free | Health & Fitness |
| [Apnea Trainer: Nea](https://appshunter.io/ios/app/apnea-trainer-nea/id6461216531) | 5.0 (6) | Free | Health & Fitness |

## More apps by Mariusz Kociubinski

- [GaitLab Coach: Run Pain-Free](https://appshunter.io/ios/app/gaitlab-coach-run-pain-free/id6755685826)
- [Kaya Breath – Powered by Voice](https://appshunter.io/ios/app/kaya-breath-powered-by-voice/id6757104712)

All apps by Mariusz Kociubinski: https://appshunter.io/developer/1568496751

## Related topics

[co2 table](https://appshunter.io/ios/topics/co2-table) · [apnea trainer](https://appshunter.io/ios/topics/apnea-trainer) · [freediving apnea trainer](https://appshunter.io/ios/topics/freediving-apnea-trainer) · [breath hold trainer](https://appshunter.io/ios/topics/breath-hold-trainer) · [freedive apnea](https://appshunter.io/ios/topics/freedive-apnea)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*