Did your meditation actually work?
Real-time heart rate during meditation — from your AirPods Pro or Apple Watch. Watch your nervous system downregulate. See the data, the trends, the settle time. Stop guessing whether the practice is doing anything.
Most apps tell you to trust the practice. Heart Sit shows you the data — every heartbeat captured by your AirPods Pro or Apple Watch, every drop in BPM as you settle, every change in your nervous system over weeks.
Heart Sit isn't another meditation app. It's a measurement instrument for people who already have a practice and want objective data on what happens inside.
You sit every day. You've tried Headspace, Calm, Insight Timer — you don't need guided content anymore. What you want is evidence. Does today's session look different from yesterday's? Heart Sit shows you.
You track your sleep, your HRV, your workouts. Meditation has been the one practice without numbers. Heart Sit fills that gap — every session quantified, every trend visible.
You're tired of "wellness" apps that gate basic features behind $9.99/mo. Heart Sit is free, no accounts, no cloud. Your data stays on your device.
Pop in AirPods Pro or wear your Apple Watch. Heart Sit auto-detects your sensor. Source picker lets you force one or the other.
Set duration, set an intention if you want, tap Begin. Five-second warm-up, then the bell rings. Lock the screen and close your eyes.
When the bell rings again, your session is summarized: BPM curve, settle time, HRV, and a one-line answer to "did it work?"
No gradients, no illustrations, no decorative elements. Typography-driven interface that disappears so the practice can begin.
Active session
Session detail · OBSERVED insight
Trends
Home
Overtime
Apple Watch remote
Settings
Every feature exists because it makes the practice measurably better. Nothing ornamental.
Live heart rate from either source — pick your sensor or let the app auto-detect. AirPods Pro 3 (in-ear optical) or any HR-capable Apple Watch. The label always shows which device is providing the reading. No chest strap. No additional hardware.
Core sensorOpen Heart Sit on your Watch — it becomes a control surface. Pause, resume, stop from your wrist. Live BPM on both screens. Phone can sit screen-down across the room.
NewProprietary metric — how long it took your heart rate to reach its session minimum. Lower means you settled faster. Tracked across weeks in Trends. The number serious practitioners check daily.
Signature7 day, 30 day, 90 day, and all-time. Daily resting BPM, settle-time trend, practice mix, minutes per day. Compare this week to your 90-day baseline — see the line move.
DataHeart Rate Variability (SDNN, ms) read from HealthKit for the session window. The clinical autonomic-tone metric that HeartMath charges hundreds for. Free, on every session.
Open, Zazen, Vipassana, Breath Focus. Tag your sessions and Trends shows you which practice settles you fastest. Not guided content — just intent.
Tag morning, post-workout, stressed, calm. Capture mood after each session: Clear, Calm, Neutral, Restless, Heavy. Find the contexts that produce your best practice.
Bell rings when timer ends — but you don't have to stop. Continue as long as you want. Heart Sit counts the extra time and saves your full duration. The session decides when it's done.
One line of why you're sitting. Recall it after. Becomes part of the session record. Optional — but the practice is sharper with it.
Radial heart rate visualization shifts color: cool blue when you're below your session average, warm red when above. Felt feedback, not just data.
Optional subtle pulse synced to your actual BPM. Turns the BPM reading into something you feel, not just see. Anchors awareness in the body.
Export any session as a poster image — duration, average BPM, settle score, full HR line, brand mark. Great for journaling or sharing.
Lock your screen. Put the phone down. Heart Sit keeps running — heart rate, timer, bells, all continue. Your practice shouldn't need a screen.
Tibetan-style bell at start and end. Optional gentle dings every 30 seconds to 10 minutes. Configurable, mutable, or off entirely.
Every session saved as a Mind & Body workout in Apple Health. Counts toward your mindful minutes. Native ecosystem citizen.
Export single session or all at once. Timestamp, BPM, source device, practice type, mood, settle score, HRV. Share with your coach or analyze in R/Python.
Consecutive days. Total sessions. Total minutes. Simple accountability without gamification noise.
When you settle into meditation, your parasympathetic nervous system takes over. Heart rate drops. HRV rises. This is what "calm" looks like at the physiological level.
"Mindfulness meditation is associated with significant decreases in resting heart rate and increases in heart rate variability — markers of improved autonomic balance and cardiovascular health."
— Sevoz-Couche & Laborde, 2022 · Neuroscience & Biobehavioral Reviews
v1.0 captures heart rate, gives you the data, and answers "did it work?" in one line per session. Future versions deepen the interpretation — turning raw signals into actionable insight about your autonomic state.
Shipped Next Planned
Heart Sit is live on the App Store. Requires AirPods Pro 3 or Apple Watch, and iPhone running iOS 18+.
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