# BreatheDeep: Apnea Trainer — Freedive Breath Training

> App for guided breath-hold training to improve lung capacity and breathing control. (iPhone/iPad app by MefjuDev LLC.)

- Source: https://appshunter.io/ios/app/breathedeep-apnea-trainer/id6749043591 (this page in markdown: same URL + `.md`)
- Developer: [MefjuDev LLC](https://appshunter.io/developer/1777787735)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17 · 30 MB
- Languages: English, French, German, Italian, Japanese, Korean, Portuguese, Chinese, Spanish, Chinese and 1 more
- Released: 2025-07-28
- Data updated: 2026-06-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/breathedeep-apnea-trainer/id6749043591/reviews.md

## What is BreatheDeep?

Train Your Breath. Unlock Your Potential.
BreatheDeep – Apnea Trainer is your personal breath-hold training app, designed to improve lung capacity, CO₂ tolerance, and overall breathing control through guided apnea tables. Whether you’re into freediving, surfing, spearfishing, or simply want to strengthen your breath, BreatheDeep helps you breathe better and hold longer.

Key Features:
• Guided training sessions with vibration and sound cues.
• Automatically adapts difficulty based on your progress.
• Training history with detailed stats and progress tracking.
• Calendar view to review completed sessions.
• Schedule upcoming trainings for consistent progress.
• Background timer notifications to stay on track during your sessions.
• Safety guidance for all experience levels.
• Clean, focused interface designed for a smooth experience.

Included Programs:
• Breath-Hold Test – Measure your maximum breath hold and track your improvement over time.
• CO₂ Tolerance Training – Build resistance to the urge to breathe and develop mental endurance.
• O₂ Training – Enhance oxygen efficiency and safely push your physical limits.

Whether you’re a beginner or an experienced diver, BreatheDeep helps you train smarter, stay consistent, and breathe deeper.

## Key features

- Guided apnea training sessions
- Adaptive difficulty
- Training history and stats
- Calendar view for sessions
- Scheduled training reminders
- CO₂ tolerance programs
- O₂ enhancement programs

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Yearly | $14.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| BreatheDeep Pro | $4.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/breathedeep-apnea-trainer/id6749043591/reviews.md

### 5/5 — Very useful

*2025-08-23*

I started doing snorkel a month ago and this app is really helping me out to step up my breathing game!

**Developer response:** Thank you for review! I hope app will be useful and help you with your snorkeling journey.

## Frequently asked questions about BreatheDeep

### What is BreatheDeep used for?

BreatheDeep is used for guided breath-hold training to improve lung capacity, CO₂ tolerance, and overall breathing control. It offers programs for breath-hold tests, CO₂ tolerance, and O₂ enhancement.

### What are the subscription options for BreatheDeep?

BreatheDeep offers a weekly subscription for $0.99 with a 3-day free trial, and a yearly subscription for $14.99. These plans unlock full access to all features and programs.

### Does BreatheDeep have ads?

No, BreatheDeep is ad-free. The application does not contain advertisements, ensuring a focused and uninterrupted training experience for users.

### How does BreatheDeep track progress?

BreatheDeep tracks progress through detailed statistics on training history, including breath-hold times and CO₂ tolerance improvements. A calendar view allows users to review completed sessions and schedule future ones.

### What safety features does BreatheDeep offer?

BreatheDeep provides safety guidance for all experience levels. It is designed to help users train smarter and stay consistent while pushing their physical limits safely.

### What devices is BreatheDeep available on?

BreatheDeep is currently available on iPhone. The app supports iOS devices, allowing users to train their breath on the go.

### How often is BreatheDeep updated?

The latest version of BreatheDeep is 1.6.1, last updated on October 8, 2025. This indicates regular updates to improve functionality and user experience.

### What is the user sentiment for BreatheDeep?

BreatheDeep has received overwhelmingly positive user feedback, indicated by its perfect 5.0-star rating from 2 reviews. Users appreciate its effectiveness and clean interface.

## Version history (last 5 releases)

### 1.6.1 — 2025-10-08

New features inside BreatheDeep - Apnea Trainer:
- You asked, I delivered! Right now app is available in 10 additional languages: Japanese, Chinese Simplified, Chinese Traditional, Korean, Vietnamese, Spanish, German, French, Italian and Portuguese!
- Training reminders and timer notifications added.
- Slightly changed UI for better User Experience like additional plan preview inside CO2 / O2 training timer.
- Small Bug Fixes

### 1.6 — 2025-08-12

- Added the feature with progressively increasing the difficulty of the trainings. Just try to break your Max Breath Hold record then all program will be more difficult!

### 1.5 — 2025-08-11

- Again fixed issue with UI, the problem was with the swiping styled cards, now its works perfect even on older devices.

### 1.4 — 2025-08-08

- Fixed loading UI on fresh install. Some users got an issue that after install only saw the tab bar on the bottom, nothing more. Now its works! Sorry for inconvenience!

### 1.3 — 2025-08-06

- Changed settings UI to show Unlock PRO button, when user have premium the button is grayed out and have green checkmark.
- Fixed small bug where on smaller screen whole UI goes blank after finished training.

## More apps by MefjuDev LLC

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All apps by MefjuDev LLC: https://appshunter.io/developer/1777787735

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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 2026-06-04.*