Coherence App vs GENUS

Stop guessing recovery. Just breathe and observe your body improve through ITFD-guided breathing, HRV analysis, and clearer autonomic insight. Coherence is a structured physiological evaluation app built around Heart Rate Variability (HRV) and guided breathing sessions. It does not measure relaxation. It evaluates autonomic behavior, cardiac coherence and recovery patterns through structured session analysis. HOW SESSIONS WORK Sessions are started from Apple Watch. Breathing is guided using haptic feedback and color cues: • Haptic + blue = nasal inhalation • No haptic + green = nasal exhalation Inhalation timing is detected algorithmically in real time. The ITFD algorithm continuously evaluates HRV dynamics and determines the optimal breathing rate and inhalation–exhalation structure during the session. Signal acquisition is performed through Apple Watch. When available, external chest straps such as Movesense or Polar H10 can be used to refine HRV signal quality and improve algorithmic precision. If the HUM button is blinking before starting, the ITFD algorithm has detected that adding humming during exhalation is recommended. Humming is performed as Single-Breath Humming: a steady low sound during the entire exhale, producing stable nasal vibration. This vibratory nasal exhalation is associated with nitric oxide (NO) release. For more detailed information, see the corresponding sections in the Features area of our site. To avoid consciously forced diaphragmatic breathing, the app proposes a light index–thumb opposition as a sensorimotor anchor. This subtle gesture supports postural stability and reduces accessory respiratory engagement without deliberate control. For more detailed information, see the corresponding sections in the Features area of our site. MEASUREMENT AND INTERPRETATION Each session generates an ITFD score derived from HRV behavior across repeated sessions. The model integrates SDNN and RMSSD dynamics to provide structured physiological interpretation. The main card displays, by default, the latest recorded session. If a specific day is selected in the calendar, the card reflects the results of that selected session instead. The dynamic background and main card interface include real-time graphical responses to physiological data during the session. Visual intensity and motion adapt continuously to coherence and stress dynamics, functioning as structured biofeedback rather than decorative animation. The main card includes: • A 7-day mini-chart showing daily minimum and maximum ITFD values • Directional change compared to the previous session • An interpretive phrase integrating structural analysis and circadian context • A selectable calendar • A 30-day trend summarizing overall progression The interpretive phrase reflects the session within the system’s daily pattern, not only an isolated change. In addition to the main interpretation, each session includes detailed charts displaying stress, coherence, and heart rate (HR) data. These charts provide structured visual feedback and allow observation of session dynamics both in real time and retrospectively. STRUCTURE The app is ideally designed for one session in the morning and one in the evening to evaluate daily autonomic patterning. Early sessions progressively stabilize as more data is recorded. Coherence does not provide generic stress scores, motivational framing, or lifestyle coaching. It is designed for users interested in structured HRV interpretation, cardiac coherence analysis, and measurable autonomic dynamics.

Mental clarity isn't just meditation or sleep. GENUS delivers 40 Hz gamma frequency stimulation — the same audio-visual rhythm MIT's Picower Institute identified as a potential lever for brain health, memory, and focus. Stop relying on vague wellness routines. GENUS uses synchronized screen flicker, isochronic audio tones, and haptic pulses — all locked to exactly 40 Hz on your iPhone's ProMotion display — to deliver clinically-inspired sensory stimulation in sessions you can do anywhere. CORE FEATURES: 40 HZ GAMMA STIMULATION The core science. Synchronized light, sound, and haptics all locked to 40 Hz — the rhythm MIT's research identified as a potential brain wellness frequency. FOUR FREQUENCY MODES Stimulate different brain states with precision-tuned sessions: 40 Hz Gamma for brain wellness and cognition, 10 Hz Alpha for relaxed focus, 6 Hz Theta for deep meditation, and 2 Hz Delta for deep sleep. CINEMATIC VISUAL THEMES Choose from animated coherence backgrounds — Heart Field's toroidal energy flow, Cymatic Bloom's rotating mandala, plus Aurora, Space, Ocean, Resonance Field, Harmonics, and more. Each one breathes with your session. BUILT-IN BREATHWORK Sync your breath with six guided patterns including Box Breathing (4-4-4-4), 4-7-8 calming breath, Triangle, Coherent 5-5 / 6-6, and a fully custom box where you set your own inhale, hold, and exhale durations. PERSONAL AMBIENT LIBRARY Layer your stimulation with pure tone, warm drone, brown/pink/white noise, rain, ocean swells, jungle ambience, or quiet cave drips. Each ambient locks to your selected frequency for perfect synchronization. STREAK TRACKING & HABIT BUILDING Build a daily session habit with automatic streak tracking, a 7-day minutes chart, full session history, and gentle daily reminders you control. APPLE WATCH COMPANION Start sessions from your wrist, monitor heart rate live via HealthKit, and sync session history seamlessly with your iPhone — no extra setup. LIVE ACTIVITY, DYNAMIC ISLAND & WIDGET See your live session countdown in the Dynamic Island, on your Lock Screen, or in a home-screen widget. Your streak is always one glance away. PRIVACY-FIRST GENUS doesn't require an account. Your session history stays on your device. We don't collect personal information and we don't sell data — ever. GENUS PREMIUM: Unlock the full experience with GENUS Premium: • Animated visual themes (Heart Field, Cymatic Bloom, Aurora, Resonance Field, and more) • Kaleidoscope visual mode • Box Breathing patterns and 4-7-8 calming breath • Custom session durations from 1 to 120 minutes • Smart Sleep Fade for Delta sessions — audio and brightness gently fade so you can fall asleep without an abrupt cutoff • Extended ambient sound library (Ocean, Jungle, Cave Quiet) • Completely ad-free sessions Start with a 7-day free trial. Then $39.99/year (just $3.33/month) or $6.99/month. Cancel anytime in App Store settings. IMPORTANT SAFETY INFORMATION: GENUS uses flickering light and synchronized sensory stimulation. Do not use this app if you have epilepsy, a history of seizures, or are sensitive to flashing lights. Do not use while driving or operating machinery. If you experience dizziness, discomfort, or visual disturbances during a session, stop immediately. Consult your doctor before use if you have any neurological conditions. GENUS is a wellness and relaxation tool. It is NOT a medical device and is not intended to diagnose, treat, cure, or prevent any disease. Statements about brainwave stimulation refer to general consumer-wellness use and have not been evaluated by the FDA. Inspired by MIT's GENUS research (Gamma Entrainment Using Sensory Stimulation) led by Dr. Li-Huei Tsai at the Picower Institute. Read our full Terms & Privacy Policy inside the app or on our website. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/