Breathbox: Breathing Exercises

Science-backed breathing techniques for calm, focus, and sleep. Apple Watch included.

Breathbox is a breathing exercise app built around the techniques that actually work — used by Navy SEALs, backed by Stanford and Harvard research, and simple enough to use anywhere.

Choose your technique, set your time, and breathe. The animated ring guides every inhale, hold, and exhale. No narration. No clutter. Just your breath.

7 TECHNIQUES

Box Breathing — 4-4-4-4 The Navy SEAL standard. Equal counts that build focus and composure under pressure.

Triangle — 4-4-4 Three equal counts. The easiest way to start a breathing practice.

Calm Exhale — 4 in, 6 out A longer exhale than inhale tips your body straight into rest mode.

4-7-8 — 4 in, 7 hold, 8 out Activates the parasympathetic system. Ideal for falling asleep and easing anxiety.

Physiological Sigh — double inhale, long exhale Stanford researchers found this is the fastest way to calm your nervous system.

Resonance — 6 in, 6 out Breathe at 6 cycles/min to synchronize heart, lungs, and brain.

Wim Hof — fast cycles, retention Controlled hyperventilation that raises energy and builds cold tolerance.

APPLE WATCH

Full Apple Watch app included. Start a session from your wrist, with a breathing ring that expands and contracts in real time. Screen stays on throughout your session.

WHAT ELSE

• Ambient sounds: rain, ocean waves, meditation tone
• Voice cues on each phase change
• Haptic feedback on Apple Watch and iPhone
• Daily reminders at your chosen time
• Session history and streaks
• Insights after each session explaining the science

Breathbox+ unlocks all 7 techniques, ambient sounds, and unlimited reminders.