Coherence App vs Coherence

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.

Become the CEO of your life. Coherence trains the skill that lets you make the right decision every time, no matter how much pressure you are under. It is the quiet edge of top business executives, professional athletes and elite military operators: training the nervous system so that when life happens, you self-regulate quickly and effectively instead of reacting. This is not just stress relief. It is an upgrade to your quality of life, so you thrive everywhere and all the time: in the boardroom, on the field, and in your everyday relationships. The method is coherence breathing. A few minutes a day at your resonant frequency, usually around 5 to 6 breaths a minute, while you watch your heart rate variability (HRV) respond. Practiced daily, calm under pressure stops being luck and becomes a reflex. Coherence is a first of its kind tool that meets anyone where they are. Breathe along with no sensor at all, or connect state of the art hardware and see your heart and brain respond to every breath. It is beginner and clinician friendly alike. You can go as deep as you want. WHAT IT DOES FOR YOU - Stay clear and decisive under pressure, in the boardroom and on the field. - Show up better in your relationships: more patient, present and grounded. - Bounce back in minutes when life throws something at you. - Wake up knowing whether to push hard or go easy, from your own HRV readiness. - Shift gears on demand before a big meeting, a hard conversation, or sleep. - Build a streak and watch your scores climb as your nervous system grows more resilient. - Know your number: Coherence finds your own resonant breathing rate instead of guessing. LIVE HRV BIOFEEDBACK A glowing orb paces every inhale and exhale. As your heart rhythm locks into coherence, it lights up. Your live heart rate, HRV and coherence score sit right under it, with haptic and sound cues so you can close your eyes. HRV READINESS Know how recovered you are before the day starts. A quick morning reading from your strap, Muse, phone camera or Apple Watch compares your HRV with your own rolling baseline and tells you plainly: well recovered, right on baseline, or go easy today. Each reading adds RMSSD, lnRMSSD, SDNN, pNN50, stress index and LF/HF, and your trend builds over months. No separate readiness app needed. FIVE WAYS TO TRAIN - Strap and Muse: heart strap plus Muse headband for the cleanest heart and brain picture. - Heart strap: Polar H10 and other Bluetooth heart rate straps, with true ECG on the Polar H10. - Muse: brain and heart from one headband. - Camera: fingertip on the lens, no extra gear. - Just breathe: no sensor at all. Follow the pacer anywhere. BREATHWORK, YOUR WAY Follow a proven routine like box breathing, 4-7-8, CO2 tolerance or power breathing rounds, or build your own. Set every inhale, hold, exhale, repeat and round, save it, and run it with live feedback on every phase. BREATHE WITH SOMEONE Share a code and breathe in sync with a partner, a client, or a friend, in the same room or across the world. One shared rhythm, and you both see each other's coherence settle. EVERY METRIC THAT MATTERS Each session ends with a full breakdown you can read at a glance or study in depth: - Coherence score and time in the coherence zone - Heart rate and HRV (RMSSD) - SDNN and pNN50 - LF power, HF power and the LF/HF ratio - Stress index - Estimated breathing rate and your resonance pace - Muse alpha and theta bands, compared with your own baseline - Session to session comparison so you can see what changed PROGRESS THAT KEEPS YOU GOING Day streaks, best scores, total minutes and 30 day, 90 day and yearly trends. Difficulty levels from Easy to Legendary keep raising the bar as you improve. APPLE HEALTH With your permission, Coherence saves mindful minutes and measured heart rate and HRV to Apple Health. Coherence is for personal wellness and breathing practice. It does not provide medical advice, diagnosis or treatment.