About this app
Select your preparation time to get ready for the training session. A good value is 2 - 3 minutes to do pranayama breathing, reduce your heart-rate and mentally prepare for the training. Choose a breathhold time where you can comfortably hold your breath: A good value is 60-70% of your maximum breathhold time. Choose a recovery time that allows you to hold your breath for the same time as you did before. 1 minute is a good starting value. Set either an increase for your breathhold time (start with 10 seconds) for O2 Training or set a decrease of your recovery time (start with 15 seconds) for CO2 tolerance training. Select 8-10 rounds. Tap "start" to begin your training session. Never hold your breath under water without a qualified person supervising you and without proper freediving training/certification!
Latest release
What’s New
fixed issue with wrong calculation of total training time.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 13, 2026 · 12:09 PM Free
Screenshots
