iPhone Screenshots


Train your body to stay longer underwater without breathing!

This App will train your body and let you stay longer underwater on a single breath on your next snorkeling or freediving vacation. You will be able to dive deeper and enjoy the beautiful sea life.
Please check guidelines in the App to schedule training.
The app will generate a four-week training program based on your current maximum breath hold result. Increase your results and repeat.
Happy snorkeling and freediving!

Freedive trainer premium

Freedive apnea is ad-supported. Freedive trainer premium is an optional subscription to unlock a range of advanced features and remove advertisements. There are quarterly and yearly payment options and both include a one week trial.
Freedive trainer premium is 8.99$ per year or 2.99$ per quarter. Prices are in US dollars and may vary from country to country.
If your choice to purchase Freedive trainer premium, payment will be charged to your iTunes account at confirmation of purchase, and your account will be charged for renewal 24 hours prior to the end of the current period.
Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable

Freedive trainer Privacy Policy: http://sleepybytes.com/privacy-policy/
Terms of use: https://www.sleepybytes.com/terms/

What’s New

Version 2.0.5

Small performance improvements

Ratings and Reviews

4.9 out of 5
209 Ratings
209 Ratings
MrVampireSlayer ,

Great App, Some Issues

So I live in Galveston, Tx and am currently going to school for Marine Biology with a minor in Scuba Diving. I originally downloaded this app to help me condition my breathing prior to any of my dive classes so I’d have a leg up on others in my classes when it came to free-diving. I took the initial test and started at 50 seconds, yet within 3 days of CO2 training I’d gone all the way to 2 minutes and 5 seconds. So in my opinion the app works great if you practice (I did it more frequently than the app recommended though)... I wanted to save the rest of my stuff in app so I decided to just pay for a year since it was cheap and I kinda liked the idea of a countdown since I hate looking at the timer... but the voice for the timer sounds awful and makes me uncomfortable! Not to mention I’d prefer more of a serious 10-15 second countdown going like 10-9-8-etc. than a whole minute of 10 second intervals. So since I’m still in the free trial I think I’ll just unsubscribe before the end of the trial and keep my own notes about my practices since the only things you can pay for aren’t even that great... That all being said, I 100% recommended this app! It is simple to use, easy to understand, and it does exactly what it’s meant to! I plan to use this for a long time indeed!

Barnibus Pipinpadaloxicopolis ,

Amazing results

Im not sure if this is normal or if it will be the same for every but i started off being able to hold my breath for 1:23. I then did one training session of each type (CO2 and O2). After that i decided to try another breath hold test and found that i was able to hold my breath for 2:46. I literally doubled my time in under an hour and I don’t know how that’s possible. I can now get to two+ minutes before feeling any slight discomfort and by the end of the month i'm hoping to be able to hold my breath for 3:30-4:15. I’m extremely impressed by this app and very glad that i tried it out.

FroWhite ,


I decided I wanted to learn to hold my breath longer, came across the free-diving community, and then found this app. It has worked really well so far! I can hold my breath for 2:06 instead of 1:32 and it’s only been a week. Can’t wait to see the end result. My one complaint is that I would like to see a progressive table, not just one static lesson for CO2 and O2 only. For example, each lesson throughout the CO2 should increase the time for breath holds by 10 seconds.


Aivars Meijers
36.5 MB
Health & Fitness

Requires iOS 11.4 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© SleepyBytes
In-App Purchases
  1. Freediver Trainer Premium $2.99
  2. Freediving Trainer Premium $8.49
  3. Remove advertisements $3.99


  • Family Sharing

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

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