STAmina Apnea Trainer 4+

Freediving, Spearfishing coach

Squarecrowd Apps, LLC

Designed for iPad

    • 4.9 • 4.3K Ratings
    • Free
    • Offers In-App Purchases




► Helps with physical and mental aspects of improving the ability to hold your breath
► Over 50k+ users

Hold your breath longer underwater with the best freediving apnea trainer – STAmina Apnea Trainer. By freedivers, for freedivers, our freedive apnea trainer helps you with static apnea tables and lung capacity training so you can effectively increase the time when diving underwater.
See why STAmina Apnea Trainer is one of the best apnea apps to improve the breath-holding time for freediving, scuba diving and spearfishing, as well as surfing, running, and other water sports with 6 different apnea tables types.


STAmina Apnea Trainer can create / generate custom apnea (exercises that are automatically created based on the maximum breath-hold and match the user’s level) or let you select from the following customizable table types:

- O2 deprivation table – accustoms a body to lower oxygen levels. This is achieved by increasing the amount of time that you hold your breath on each attempt, while the resting time is fixed.

- CO2 Tolerance table – helps a body to adapt to high carbon dioxide levels. This is achieved by decreasing the length of resting time between fixed breath-hold periods.

- Wonka table – a variation of CO2 tables. Apnea timer starts after the first contraction, the rest time takes one breath.

- Mix table – tables where apnea time increases and rest time decreases with each round.

- Custom table – allows mixing of different approaches to create a custom training, thus generating the most effective training program.

- Pranayama – a breathing technique to decrease stress in the body and relax the nervous system.


When you start working with the application, you set your personal record in breath holding. Based on this data, the app will offer a personalized training program with exercises of 3 difficulty levels to choose from: easy, normal, and hard.

Each exercise can be edited by setting your own number of repetitions, breath hold time, rest time, etc.

Get the notification to start your apnea training. Set a reminder in the apnea diver app for the day and the time & get a notification to do a breath holding training session.

All your workouts and exercises are recorded in the freedive trainer app to track the detailed progress of each training.

Training may be accompanied by voice guidance with male/female voices recorded by professional voice actors. STAmina supports English, French, Russian voice guidance.

Track your heart rate while doing breath holding exercises (a compatible HR monitor or pulse-oximeter is required)

Use our freedive trainer to track unlimited contractions, analyse captured data after exercises

Access your data on multiple devices and easily restore it in case you switch devices/phones.


Stamina Apnea Trainer allows training breath hold effectively for anyone who cares about all kinds of diving including:
> beginner or professional freedivers;
> scuba divers to learn how to dive longer on one tank;
> surfers in case of unexpected breath hold;
> underwater sports athletes such as underwater rugby, hockey, etc.
> runners who want to train breath holding & high tolerance to CO2 while running

Terms of Use:
Privacy Policy:

What’s New

Version 6.5.9

Fixed the issue with the history page

Ratings and Reviews

4.9 out of 5
4.3K Ratings

4.3K Ratings

Coach Adam Cobb ,

Post Covid19

I’m extremely grateful for this tool at this moment in time. After getting COVID19 6 weeks ago and suffering from major fatigue for 14 days while being an athlete and coaching NBA athletes to be their best in mind and body I was struggling with my lack of stamina as I’m known to be the guy in the room that never gets tired. After a few friends of mine getting Covid19 and developing pneumonia because they pushed it during their training after being symptom free, I knew I had to slow down and modify what’s possible right now.
Your app has given me great hope that I can still challenge myself right now to build my energy and stamina but not do any potential damage. Not only that, but as a scuba diver and lover of the ocean now I’m thinking and visualizing my first free dive and even first spear fishing trip with my friend that recommended this app to me. Grateful for the gift you’ve given me through your app, the gift of energy, stamina, and vision. Cheers with water, Coach Adam Cobb

dootph ,

Great app!

UPDATE: The developer contacted me in a very timely manner and helped me resolve the issue. Which was that the ringer on the left side of the phone was in the silent position. Now I have the voice and will update the rating to 5 stars as I find the app very useful. I would love to see an upgrade at some point that will allow to hear the app’s voice even with the ringer in silent position though, as I don’t want to be interrupted by any phone calls during my training! Thanks for taking this request into account.

Original review: 3 stars - the app appears to be completely silent, although I set a voice and beeping in Settings. It is difficult to watch the time during all the training and I want to make sure I have the voice activated. I already rebooted my phone and did everything I could to ensure it’s working, but no success. And I can’t find how to contact developer with this questions. Thanks for looking into it.

Developer Response ,

Thanks for the review! In the latest version (1.9.8) the app's voice should work even with the ringer in silent position.

Sibicle ,

Solid for what it does

2020 update

Use this app consistently. Developer is really responsive which I appreciate. Got me to 4 minute hoods, thanks!!

Takes out the guesswork from creating tables, and lets you focus on technique instead of watching a timer. There are, however, a few features that I think would be pretty obvious inclusions in a paid (premium) app.

Would be nice if it helped you decide when to generate new tables, and allowed you to rate and makes notes about each session (how difficult did you find it, did you master a technique, etc). A history graph would be nice too, along with an export functionality.

Also it’s weird that it doesn’t work with the silent switch on and the display off. For instance, my metronome app plays sound regardless of the state of the silent switch or display. Seems like this would be the obvious thing to do, as when you start a session, you are indicating that you want that activity happening for the next ~20 minutes—the app could infer that it’s okay if it makes noise.

Finally I dive to get away from the noise of society and go to a place of focus and mindfulness—being nagged every time to “SHOW THE WOLE WORLD” my dive practice is antithetical to the way I experiencing diving. Please let me switch this feature off!

Developer Response ,

Hey, thanks for the review. That's a super valuable input for me. Currently, I'm working on some big changes, but as soon as they're done, I'll add a possibility to rate a session and add a note. I'll also make it possible to disable the sharing feature. Can you please contact me by email (About -> Contact) and I'll give you more info about why the app doesn't work when the screen is switched off. And I would like to hear more about your training routine, I think I can learn a lot about the UX cases from you.

App Privacy

The developer, Squarecrowd Apps, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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