Kokyu: Diving Companion

Kubicle

Contains adsIn-app purchases

About this app

Kokyu is a breath-hold training app designed to help you build lung strength, improve breath control, and increase your apnea endurance. Whether you're training for freediving, spearfishing, surfing, or simply want to explore the limits of your breath, Kokyu offers structured sessions that adapt to your skill level.

Train with guided CO₂ and O₂ tables, track your progress, and develop the calm and control needed for longer, more efficient breath-holds.

Key Features:
• Guided CO₂ and O₂ table sessions
• Customizable breath-hold routines
• Audio and haptic cues for hands-free training
• Progress tracking and streaks
• Designed for freedivers, surfers, athletes, and beginners

What’s new

We’ve held our breath for this update - built to help you train smarter and push your limits.