Breath Hold Timer: O₂ Table

Create your breath-hold progression in seconds, then put your phone down and let the session run. O₂ Table Trainer is a focused breath hold timer for progressive apnea training with increasing hold times and fixed recovery periods. No complicated setup, no manual round-by-round calculations, and no unnecessary distractions during your session. Built for self-directed freedivers, spearfishers, and static apnea practitioners who already know how they want to train. Build your table your way Enter four simple values: • Starting breath hold • Hold-time increment • Fixed recovery time • Number of rounds The app automatically generates your complete breath hold progression. Instead of editing every interval individually, create the entire table at once: Hold → Rest → Longer Hold → Rest Review every round before you begin and see exactly what your session looks like. Start training without watching the clock Once your session starts, O₂ Table Trainer keeps the experience simple and easy to follow. See at a glance: • Current phase • Large countdown timer • Current round • Total rounds • Current hold duration • Next hold duration Optional sound and vibration cues help you follow the session without constantly looking at your phone. Fixed recovery. Progressive holds. This breath hold interval timer is designed around a simple progression: Hold your breath Recover for a fixed period Begin the next round Hold for longer Repeat The recovery duration stays constant while the breath hold duration increases from round to round. Use presets for a quick start or create a custom apnea table that matches your preferred starting hold, progression, recovery time, and number of rounds. Designed to reduce setup friction Many training timers become cluttered with features or make simple customization unnecessarily tedious. O₂ Table Trainer focuses on one job: helping you generate and run a progressive breath hold table quickly. Create the progression once instead of calculating every round manually. Preview the complete session before starting. Then focus on the session instead of managing the timer. A timer you can trust during the session Your training session should not require constant interaction. O₂ Table Trainer is designed around a dependable session experience, with a clear active-session screen and optional audio and haptic cues. Pause, resume, or end a session when needed, then review your result when the session is complete. Keep your sessions simple Basic local session history lets you keep track of completed sessions, including: • Date • Table settings • Completed or stopped status • Rounds completed • Total session time No account is required to get started. Built for focused apnea and breath-hold practice O₂ Table Trainer is a purpose-built timer for users who want a structured breath hold training tool without turning their phone into another complicated training platform. Whether you use breath hold tables for static apnea practice, freediving preparation, or other self-directed dry-land training, the goal is simple: Set your progression. Start the timer. Focus on the session. Important safety information This app is a timing and session-structuring tool only. It does not provide medical advice, monitor physiological safety, or guarantee training outcomes. Breath-hold practice can involve serious risks. Use appropriate judgment, follow established safety practices, and do not rely on this app as a safety device. O₂ Table Trainer — progressive breath hold training with fixed recovery, fast setup, and a focused session timer.