Tetra – Box Breathing

Guided box breathing with gentle haptic cues. Choose your rhythm, find your calm—no subscriptions, just breathe.

Box Breathing helps you slow down, focus, and reset—guided entirely by gentle haptic cues.

Features • Adjustable rhythm (3–6 seconds per phase) • Subtle haptic feedback for inhale, hold, exhale, hold • Minimal, distraction-free design inspired by calm technology • Works in Silent Mode — feel the rhythm without sound • One-tap start for quick breathing sessions anytime

Why it matters Box breathing is a proven technique used by athletes, pilots, and mindfulness practitioners to lower stress and sharpen focus. A few calm cycles can reset your nervous system and improve clarity.

One-time purchase. No sign-ups. No noise. Just breathe.