# ZenDepth — Apnea & Breath Hold Training

> Apnea and breath-hold training app for freedivers, spearfishers, surfers, and meditators. (iPhone/iPad app by Christos Voutsaras.)

- Source: https://appshunter.io/ios/app/zendepth/id6759767091 (this page in markdown: same URL + `.md`)
- Developer: [Christos Voutsaras](https://appshunter.io/developer/1880557269)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Rating: 5.00/5 from 4 App Store ratings
- Age rating: 4+
- Requires: iOS 18.0 · 8 MB
- Languages: English
- Released: 2026-03-23
- Data updated: 2026-06-10
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/zendepth/id6759767091/reviews.md

## What is ZenDepth?

Master your breath. Extend your limits.

  ZenDepth is a personalized apnea training app built for freedivers, spearfishers,
  surfers, and meditators who want to go further underwater.

  Set your baseline. Get a 12-session adaptive plan calibrated to your personal best. Track
   your progress through phases as your hold times grow.

  SMART TRAINING PLANS
  CO2 tables build your tolerance to high carbon dioxide. O2 tables train your body to use
  oxygen more efficiently. Every plan adapts to your current level and improves with you.

  GUIDED STRETCHING
  Expand your lung capacity and thoracic mobility with five science-backed stretching
  exercises — guided in real time with live cues.

  UNLOCK TECHNIQUES
  Master 20 breath-hold techniques progressively as you train — from Recovery Breathing to
  advanced Breath Packing.

  GAMIFIED MILESTONES
  Earn badges, conquer phases, and watch your guided streak grow. Training feels like
  progress, not a grind.

  TRAIN WITH FRIENDS
  Add friends by username and see how your personal bests stack up. A private leaderboard
  built for the freediving community.

  BEAUTIFUL BY DESIGN
  An underwater aesthetic that makes every session feel like a dive. Animated backgrounds,
  glass-morphic UI, and haptic feedback designed for focus and flow.

  ZenDepth is free to start. Unlock all training phases with a premium subscription after completing the first training phase.

Terms of Use: https://zendepth.app/terms.html

## Key features

- Adaptive training plans (CO2 & O2 tables)
- Guided stretching exercises
- 20+ breath-hold techniques
- Gamified milestones and badges
- Social leaderboards for friends
- Immersive underwater aesthetic

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annually | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $49.99 | one-time |



## Frequently asked questions about ZenDepth

### What is ZenDepth?

ZenDepth is a personalized apnea and breath-hold training application designed for freedivers, spearfishers, surfers, and meditators. It offers adaptive training plans, guided stretching, and technique unlocking to help users extend their breath-hold limits.

### What types of training plans does ZenDepth offer?

ZenDepth provides CO2 tables to build tolerance to high carbon dioxide and O2 tables to train the body to use oxygen more efficiently. These plans are adaptive and calibrate to your personal best.

### Can I train with others using ZenDepth?

Yes, ZenDepth allows you to add friends by username and see how your personal bests compare on a private leaderboard. This feature is built for the freediving community to foster friendly competition.

### Does ZenDepth have ads?

No, ZenDepth does not contain advertisements. The app is designed to provide a focused and immersive training experience without interruptions.

### How does ZenDepth handle pricing and subscriptions?

ZenDepth is free to start, offering initial training phases. To unlock all training phases and advanced features, a premium subscription is required after completing the first training phase.

### What kind of exercises are included in ZenDepth?

ZenDepth includes five science-backed stretching exercises guided in real time with live cues to help expand lung capacity and thoracic mobility.

### What devices is ZenDepth compatible with?

ZenDepth is currently available for iPhone and iPad devices, indicated by its supported devices list.

### How often is ZenDepth updated?

The latest version of ZenDepth is 1.0.4, and it was last updated on April 23, 2026. This suggests a relatively recent update cycle for the application.

## Version history (last 5 releases)

### 1.0.4 — 2026-04-23

- Push notifications
- Bug fixes and performance enhancements

### 1.0.3 — 2026-03-25

Bug fixes and minor improvements

### 1.0.2 — 2026-03-24

Minor improvements in unlocked technique cards and in Phase 2 unlocking experience

### 1.0.1 — 2026-03-23

- Improved technique unlocking logic 
- Improved stretch exercises guidance 
- Bug fixes and performance enhancements

### 1.0.0 — 2026-03-23

No release notes.

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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 2026-06-10.*