buzzbox vs DeepBreath

It's okay if you don't have a smartwatch. It's okay if you have no earphones, or if you're somewhere too quiet for sound. Just hold your phone in your hand — gentle vibrations will guide you through the rhythm of box breathing: inhale, hold, exhale, hold. In meeting rooms. On the subway. Under the covers. You can quietly care for yourself, without telling anyone. Aiming to be the smallest possible tool for your peace of mind. No login. No account. No sign-up. Your breathing records stay only on your device. If you'd like, you can save mindfulness sessions to Apple Health. If you'd rather not, everything works just the same.

DeepBreath guides you through Wim Hof-inspired breathing cycles — systematic rounds of controlled hyperventilation followed by precise breath retention — designed to boost energy, sharpen focus, and build stress resilience. HOW IT WORKS Each session consists of configurable rounds of deep, rhythmic breaths followed by a breath-hold (retention) phase and a brief recovery breath. The app tracks your retention time each round and shows your progress over time. KEY FEATURES • Configurable rounds (1–10) and breaths per round (20–50) • Real-time animated breathing guide with phase cues • Haptic feedback synced to your breath rhythm • Ambient sound options: Silence, Rain, Binaural Beats, Pink Noise, Tibetan Bowl • Session history with charts (daily count, retention trend) • Structured programs: 7-Day Beginner, 14-Day Intermediate • Siri integration — start a session hands-free • Daily reminder notifications SAFETY NOTICE Controlled hyperventilation causes real physiological changes including reduced blood CO₂, lightheadedness, and tingling. Always practice seated or lying down. Never practice while driving, in water, or standing. Consult a physician if you have cardiovascular disease, epilepsy, or are pregnant.