Ars Respirandi

    Breathing · Nervous System · Mindfulness

    Lower anxiety, sleep deeper,
    breathe easier.

    Measure your Control Pause. Get a personalized breathing protocol. Track your Nervous System Score. Five minutes a day, science-aware, coach-guided.

    Free plan forever · Premium 7-day trial · Cancel anytime

    Choose the outcome. We'll build the practice.

    Five outcome tracks. One clean daily habit.

    How it works

    A precise, honest system — anchored in one objective daily marker.

    01

    Measure your Control Pause

    A 60-second nose-breathing measurement that anchors your practice.

    02

    Get a personalized protocol

    Anxiety, sleep, stress, focus, or breathing ease — matched to where you are today.

    03

    Track your Nervous System Score

    Watch your CP rise, symptoms fall, and streaks build. Small daily practice, deep long-term change.

    Train calm deliberately.

    Small daily practice. Deep long-term change.

    Measure with the Control Pause

    A validated proxy for CO₂ tolerance and nervous-system regulation. 60 seconds, once a day.

    Evidence-informed methods

    Buteyko, coherent breathing, box breathing, 4-7-8, HRV-paced sessions — structured, not gimmicky.

    See what changes

    Nervous System Score, trend charts, symptom ↔ CP correlations. Real feedback, not vanity metrics.

    AI Coach that reads your data

    Not generic chat. It references your CP, mood, streaks and asks the questions a good coach would.

    Evidence-informedButeykoCoherent BreathingHRVPolyvagal-adjacentMindfulness

    Freemium

    Start free. Unlock the depth when ready.

    Foundations forever, Premium when you want more.

    Foundations

    $0/forever

    No card required.

    Control Pause measurement (3/day) & 14-day history
    3 core breathing methods + 5 guided sessions/week
    Daily mood journal
    5 AI Coach messages/day
    Unlock everything

    Premium

    $6.99/month

    or $49/year — save 41% · 7-day free trial

    Unlimited Control Pause tracking & full history
    Full library of 50+ protocols & structured programs
    Unlimited AI Coach with memory across chats
    Advanced Nervous System score & symptom insights
    Personalized daily routines & data export
    Priority support

    Cancel anytime.

    "The most thoughtful breathing app I've used. It feels like working with a knowledgeable coach, not a toy."

    — Early Beta User

    Frequently asked

    Straight answers to the questions we hear most.

    Yes, when used as designed. We use comfort measurements, not maximum breath holds. We publish clear contraindications (pregnancy, uncontrolled hypertension, epilepsy, severe asthma, cardiac arrhythmia, panic disorder, recent surgery). If any apply, consult a clinician before starting.