In Development

Apnea Diver — Master Your Breath

Your companion for breath-hold training and freediving preparation.
Explore the depths. Train safely. Track your progress.

Learn More
Coming to iOS & Android

What Is Apnea Diver?

Scientifically structured breath-hold training for freedivers

Apnea Diver helps you build breath-holding capacity through proven training methods — CO2 tolerance tables, O2 tables, Pranayama breathing exercises, and a precision stopwatch. Follow step-by-step safety guides and track your sessions over time.

Free, local-first app. No account required — your data stays on your device unless you sign in to sync it.
Apnea Diver App

Features

Everything you need for structured breath-hold training

CO2 Training Table

8-round CO2 tolerance training with decreasing ventilate times and guided timer controls.

O2 Training Table

Progressive apnea training based on your personal max breath-hold — push your limits safely.

Pranayama Breathing

Animated breathing circle with inhale, hold, and exhale phases for controlled breath work.

Precision Stopwatch

Millisecond-accurate breath-hold stopwatch with start, pause, and reset controls.

Progress Tracking

Session history, streaks, personal records, and recent activity — all stored locally.

Safety & Instructions

Comprehensive safety guides, medical disclaimers, and per-table training instructions.

Who Is Apnea Diver For?

Built for anyone serious about breath-hold training

Freedivers

Structured CO2 and O2 tables to prepare for depth and extend your breath-hold safely.

Spearfishermen

Build tolerance and confidence with guided training sessions and a reliable stopwatch.

Beginners

Step-by-step instructions and safety warnings — start your apnea journey the right way.

Progress Trackers

Log sessions, monitor streaks, and watch your personal records improve over time.

Safety-Conscious Divers

Medical disclaimers, liability notices, and critical training warnings built into the app.

Mobile-First Users

Clean, distraction-free interface designed for iPhone and Android.

Safety First

Breath-hold training carries real risks — always train responsibly

Apnea Diver is a training tool, not a substitute for professional freediving instruction. Never practice breath-hold exercises alone or in water without proper supervision. Always consult a medical professional before starting a new training program.

Made by Milovan Vranjes

Designed and developed with care in Munich, Germany

Focused on creating simple digital tools that improve everyday life. Built by Milovan Vranjes, a passionate software architect dedicated to user experience and safety.

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Questions or Feedback?

I'd love to hear from you

Have questions or feedback about Apnea Diver?

Email: milovan@vranjes.me