H2O Breath Hold Trainer

In-app purchases
Content rating
Everyone
500+
Downloads
Content rating
Everyone
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About this app

Unlock the full potential of your breath with Breath Hold Trainer, the ultimate tool for building CO2 tolerance, increasing lung capacity, and mastering mental resilience. Designed for freedivers, athletes, and anyone looking to improve their breath control, this app offers a suite of powerful features to help you train smarter.

Features:

• Customizable CO2 & O2 Training Tables: Tailor your breath-hold sessions to match your goals and experience level.
• Performance Tracking & Insights: Visualize your progress over time with detailed charts and analytics.
• Dynamic Training Modes: Challenge yourself with advanced training methods to push your limits.
• Personalized Assessments: Discover your max breath-hold, BOLT score, and other key metrics to guide your training.
• Seamless User Experience: Enjoy a sleek, intuitive interface designed for both beginners and pros.

Why Choose Breath Hold Trainer?

Whether you’re preparing for a freediving competition, enhancing your athletic performance, or simply improving your overall well-being, Breath Hold Trainer offers a scientifically backed approach to breath training. From structured training sessions to on-the-go tools, this app is your companion on the journey to better breathing.
Elevate your performance with CO2 and O2 training and Pool/Land WOD generators
Updated on
Aug 18, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

H2O minigame update: Max Breath Hold mode now uses your real personal best as the challenge target, for an even tougher test. Plus a new high score system to track and beat your top runs.
Content rating
Everyone
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App support

About the developer
Guillermo Mondet
sightsinsoundvideo@gmail.com
5110 Winthrop St San Diego, CA 92117-1421 United States