# Odma: Apnea Trainer — Freediving & Breath Hold Timer

> Freediving & Breath Hold Timer (iPhone/iPad app by Manuel Auer.)

- Source: https://appshunter.io/ios/app/odma-apnea-trainer/id6799113158 (this page in markdown: same URL + `.md`)
- Developer: [Manuel Auer](https://appshunter.io/developer/6799113160)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 17.0 · 26 MB
- Languages: American English
- Released: 2026-08-29
- Data updated: 2026-10-08
- User reviews in markdown: https://appshunter.io/ios/app/odma-apnea-trainer/id6799113158/reviews.md

## What is Odma?

Hold your breath. Train with purpose. See your progress.

Odma is a focused breath-hold trainer for freedivers, dry apnea practice, and anyone curious about their maximum breath-hold time. Train with a precise Max Hold timer, guided CO₂ and O₂ Tables, detailed statistics, Apple Watch support, and private iCloud sync — without unnecessary distractions.

MAX HOLD, MADE SIMPLE

Start a precise Max Hold timer with one tap. Use a customizable countdown before your attempt and optional strong haptic cues at 30-second and full-minute intervals, so you can stay focused without watching the screen.

CO₂ AND O₂ TABLES

Create structured CO₂ and O₂ Tables using Easy, Intermediate, or Expert presets based on your reference Max Hold. Build fully Custom Tables, adjust every round, rename or duplicate your plans, and review the complete sequence before training.

GUIDED TRAINING

Follow each recovery and hold phase with clear on-screen guidance, configurable haptics, and optional spoken audio cues. Pause, resume, skip recovery, finish a hold early, or stop at any time.

Background timing, Lock Screen Live Activities, and Dynamic Island support help your session continue when Odma is not open.

APPLE WATCH

Odma also includes an Apple Watch app, bringing breath-hold practice to your wrist alongside the iPhone experience.

STATISTICS THAT GROW WITH YOU

Track Max Hold personal bests, averages, recent measurements, and progress over time.

Table statistics include 7-day, 30-day, and all-time views, interactive CO₂/O₂ activity charts, training time, completed rounds, active days, and current and best streaks. Tap or drag across a graph to inspect individual dates and durations.

YOUR DATA, YOUR DEVICES

Max Holds, Tables, and Table training results can sync through your private iCloud database.

Export Max Hold measurements and detailed Table sessions as CSV files, share a designed Max Hold result card, or delete individual entries and training data whenever you choose.

ODMA PRO — ONE-TIME PURCHASE

Create, generate, customize, and explore Tables for free. Starting guided CO₂ or O₂ Table training requires Odma Pro — a one-time lifetime unlock with no subscription.

Restore your purchase on another device using the same App Store account.

PRIVATE BY DESIGN

Odma has no ads, no Odma account, and no developer-operated server. Your practice data stays on your device and, when enabled, in your private iCloud database.

WHY “ODMA”?

The name is inspired by an Austrian-Bavarian dialect pronunciation related to “atmen” — the German word for “to breathe.” Short, calm, and connected to where Odma was created.

PRACTICE SAFELY

Odma is intended only for dry breath-hold practice while sitting or lying down in a safe place. Never use it in or near water, while driving, walking, or standing. Never hyperventilate. Stop immediately if you feel dizzy or unwell. Use of Odma and all breath-hold practice is at your own risk.

Odma is a timer and training companion, not a medical device or a substitute for medical advice.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Odma Pro – Lifetime | $3.99 | one-time |



## Version history (last 4 releases)

### 1.2.1 — 2026-10-02

- Minor UI improvements to Odma on Apple Watch
- Added a new Clear app icon

### 1.2 — 2026-09-28

Odma is now on Apple Watch.

- Time your Max Holds directly on your wrist.
- Train with CO₂ and O₂ Tables created on your iPhone, with clear phase guidance and optional haptic cues.
- View live heart rate during Watch sessions with optional Apple Health access.
- Save Watch results to your iPhone and explore heart-rate charts in session details.

Max Hold remains free. CO₂ and O₂ Table training on iPhone and Apple Watch uses your existing Odma Pro lifetime unlock. No subscription or additional purchase required.

### 1.1.1 — 2026-09-02

Odma 1.1.1 makes Max Hold and CO₂/O₂ Table training more reliable and polished.

- Improved timer and countdown reliability, including background and foreground transitions.
- Refined Live Activities and added convenient training controls on the Lock Screen and Dynamic Island.
- Improved Table creation, duration controls, and reference-time handling.
- Made spoken countdown and phase cues more consistent.
- Updated the first use onboarding.
- Added further stability, accessibility, and interface refinements.

Odma Pro remains a one-time lifetime purchase with no subscription.

If you enjoy using Odma, we’d really appreciate a review on the App Store.

### 1.1 — 2026-08-30

No release notes.

## Apps similar to Odma

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [NTX Apnea](https://appshunter.io/ios/app/ntx-apnea/id1568508146) | 4.9 (62) | Free | Health & Fitness |
| [Quit Snus & Nicotine Pouches](https://appshunter.io/ios/app/quit-snus-and-nicotine-pouches/id6502235418) | 3.8 (8) | Free | Health & Fitness |
| [PoopCheck: AI Stool Tracker](https://appshunter.io/ios/app/poopcheck-ai-stool-tracker/id6737857695) | 4.4 (34) | Free | Health & Fitness |
| [Pace by Athlytic](https://appshunter.io/ios/app/pace-by-athlytic/id6755126439) | 4.6 (61) | Free | Health & Fitness |
| [Challenges Aid](https://appshunter.io/ios/app/challenges-aid/id6443764002) | 4.1 (7) | Free | Health & Fitness |
| [Personal Trainer AI](https://appshunter.io/ios/app/personal-trainer-ai/id6445799141) | 4.6 (106) | Free | Health & Fitness |

## More apps by Manuel Auer

- [Cupr: Expense Tracker](https://appshunter.io/ios/app/cupr-expense-tracker/id6802428870)
- [BoltCal: Fast Calendar Events](https://appshunter.io/ios/app/boltcal-fast-calendar-events/id6807158507)

All apps by Manuel Auer: https://appshunter.io/developer/6799113160

---

*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 2026-10-08.*