iPhone Screenshots


Practical & beautiful application for freedivers.
If you want to increase your breath hold time underwater this is the best way to do it.

******* FEATURES: **
- CO2 tables
- O2 tables
- MIXED tables
- Custom tables!!! (you can create your own best setup)
- VIBRATIONS feedback (iPhone only)
- STOPWATCH to measure your apnea times with easy, big stop button and optional warmup time

TRAIN your body to stay LONGER UNDER WATER on single breath!

What’s New

Version 1.9.9

Complete rewrite for future features. Works on newest iOS11.

Ratings and Reviews

3.3 out of 5
9 Ratings

9 Ratings

Mushie Snugglebites ,

Simple app but needs improvement

Good simple app to train tables. I wish the the app would use the conventional O2 tables (8 sets of 2 min ventilation, x seconds of apnea increasing by 15 sec) and that the app came pre-loaded with them so you could skip the “training” and pick up where you want. Similarly wish the were conventional co2 tables pre-loaded, plus I’d be nice with a Wonka style Co2 exercise with only a single recovery breath. Also wish the app would count up instead of down during apnea and tell me to “breathe”. Finally, one annoying issue with this app is that it wont stop the iPhone from going to sleep, hence you have to shut off the auto-lock/sleep function to use this app.

Some serial killer ,

Improves your performance fast

Great app! In just 3 days of using and doing all 3 sessions a day, my breath hold record increased by 30 seconds. If you are dedicated and complete all sessions regularly, you will see improvements in your dives. Worth the 3 dollars for sure!

Sr. 76 ,

Nice app!!

It took me a while to figure out Custom Training because there are no directions. But after I figured it out, I found it to be simple, elegant and intuitive. Great tool for training. Just what I was looking for.


Kamil Bujniewicz
18.9 MB

Requires iOS 10.2 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2018 Kamil Bujniewicz


  • Family Sharing

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

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