Breathwork vs DeepBreath

Most breathwork apps want your email, your name, and a year-long commitment before you've taken your first breath. Tether does the opposite. Open the app. Pick a goal. Take three minutes. That's it. LIVE BIOMETRIC FEEDBACK If you wear an Apple Watch, Tether reads your heart rate and HRV in real time during sessions. Watch your numbers drop as your nervous system shifts. Health data stays on your device — your metrics never leave your phone. GUIDED BREATHING THAT ACTUALLY GUIDES Twenty exercises across four categories — Calm, Sleep, Energy, Recover. From Box Breathing for focus to Wim Hof for activation, each one has a voice guide, breath sounds, and an ambient soundbed. Three duration tiers (3, 5, or 10 minutes) so a session fits whatever time you actually have. THE LIVING ORB The breathing visualization is a hand-tuned canvas that pulses with your inhale and exhale. Not a video, not a stock animation — calculated frame-by-frame so it stays in lockstep with the audio guide. JOURNEY DASHBOARD Track your streak, see HRV trends over weeks, get a monthly recap shareable in one tap. Synced privately to your iCloud — no account, no backend. SEND A CALM Tap once after a session to send a friend a 60-second guided breath. They get a real Tether session right inside Messages, via App Clip — no install required. PRIVACY-FIRST We don't ask for your email. We don't ask for your phone number. We don't show ads. We don't sell your data — there's nothing to sell. Anonymous usage analytics only, fully disclosed in our Privacy Policy. — Subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Manage subscriptions in App Store settings. MEDICAL DISCLAIMER Reminder to seek a doctor’s advice in addition to using this app and before making any medical decisions. Privacy Policy: https://pie-automate.github.io/tether-legal/privacy.html Terms of Service: https://pie-automate.github.io/tether-legal/terms.html

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.