Top 5 in Germany / Top 1 in Sport Apps in Australia, UK and France

Imagine seeing large, colorful fish swimming 6 meters below the surface while snorkeling at sea. Wouldn’t it be great to be able to dive deeply with one big breath and take incredible pictures for your friends at home? The Apnea Trainer makes it possible! By using it to train three times a week, you can quickly double your underwater time.

This is the same training principle used by apnea divers. It’s based on a yoga technique which strengthens the diaphragm muscles allowing you to fill your lungs with more oxygen and releasing more carbon dioxide while exhaling. The system is relatively simple and depends on finding the right time intervals which are provided by the program, thus letting you relax and concentrate on your breathing. This will guarantee maximum training success.
The program will also come in handy just before the actual dive since a pranayama mode is already included. The Apnea Trainer will help you keep your whole body calm and give you the perfect preparation for those amazing, long-lasting dives.

+ Training to improve free diving time

+ Pranayama mode to calm your body before diving or snorkeling

+ Custom time settings for pro divers

+ Optical and Audio instructions

+ Easy to use interface

Updated user interface with the help of Bjoern Maser by

What’s New

Version 4.2

Layout Bugfixes for iPhone x

Ratings and Reviews

4.8 out of 5
1.1K Ratings

1.1K Ratings

JungleNut ,

Awesome update/edit. Get Results!

Below is my original review from a long time ago however I wanted to give this latest version and the designers another 5 stars if I could. So just to update, the app is great in every way. A few changes along the way has made it even better. One more thing I would like to have (and the app may already have it I just haven’t found it) is a sound confirmation that I have started the timer. Not a tic tic tic but just a beep on start to let me know I have started the clock without looking. Great app! If you freedive or just want to learn how to relax deeper I highly recommend this app.
“This app is simple to use with several great features that simply get results fast!
The developer's response to support and feature requests is awesome.
This app has helped change the way I breath, which changes everything.”

Mr3-D ,

Excellent Tool for Improving Breath-hold

I’m just beginning to train for free-diving, and this app has already helped me double my breath-hold time. I especially like using the CO2 exercise table, and the fact that the app automatically updates my settings when I use the built-in stopwatch to set my new records. Doing these tables everyday will definitely help you improve your static dry apnea times.

Chi Chi Gonzales ,

Gets the job done, but worth the $???

UPDATE: timer is now defaulting to 23:05:00 vs 00:05:00 as the developer has indicated is the default below. No response to emails sent with screenshots of such. While it’s a minor issue, there’s simply no need for a timer to even go to these ranges. A better setup would be to emulate that of the recent change to iOS where a user can set hours, minutes, and seconds.

First, I don’t free dive but needed something that would give me focused breath control practice.

This app is pretty simple but gets the job done. For my purpose, at least. I use it for a guided relaxation breathing practice because I’m lousy about doing it on my own.

It does have a couple quirks:
1. The timer isn’t labeled so you have no idea that the left number is HOURS and the right is MINUTES. And for some reason, it defaults to 17:05:00.

17 HOURS!?!?!?

2. The instructions for the app are lacking and some of the App Preferences (AM/PM time) have no explanation of what they do so you have to toggle them on/off and “search” for what change took place.

Overall, don’t know that’s its worth $2.99 though.

Developer Response ,

Hi Chi Chi, the default is actually 5 minutes. Would be nice if you could contact the support to find out what caused this issue. AM/PM is for our friends in the USA, instead of 16:00 you will see 4 pm. If you have questions feel free to contact me using the support or FB.


Jan Luther
28.7 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German, Italian

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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