v3.0 — HRV Analysis & BLE Heart Rate Sensor

Scientify Your Meditation.

Visualize meditation effects in real-time with HRV analysis.
No ads. No subscriptions. Completely free.

Download Free on App Store

iPhone / Apple Watch

Simple. That's why it lasts.

Everything you need for meditation, and nothing you don't.

⏱

Countdown Meditation

3 to 60 minutes. Set a time and focus on meditation. A glowing ring beautifully displays the remaining time.

∞

Count-Up Meditation

Meditate freely without time constraints. The ring pulses in sync with your breathing.

🔥

History & Streaks

Visualize 12 months of meditation history with a heatmap. Consecutive day streaks keep you motivated daily.

⚡

Apple Watch

Meditate with Apple Watch alone. History syncs automatically with iPhone.

NEW in v3.0

Visualize Meditation Depth
with HRV Analysis

Connect an external BLE heart rate sensor (such as Polar H10) to analyze your autonomic nervous system balance in real-time during meditation. Experience the changes meditation brings, backed by data.

Real-Time Waveform

View your heart rate as a live waveform during meditation. Visually confirm the rhythm of your breathing and heartbeat.

SDNN / RMSSD

Time-domain HRV metrics that measure overall autonomic activity and parasympathetic nervous system activation.

LF/HF Ratio

Frequency-domain analysis evaluating the balance between sympathetic and parasympathetic nervous systems. Confirm deep relaxation states numerically.

Autonomic State

Your meditation state displayed clearly in four levels: Deep Relaxation, Relaxation, Balance, and Focus.

Compatible with a wide range of Bluetooth Low Energy (BLE) heart rate sensors, including Polar H10.

Science proves the power of meditation.

Our achievement system is based entirely on peer-reviewed academic papers.
Discover what your accumulated meditation practice does to your brain and body, with references to the research.

8 Weeks

Brain Gray Matter Increases

Continuous meditation has been shown to increase gray matter density in the hippocampus, which is involved in memory and learning.

3 Days

Stress Hormones Decrease

A reduction in cortisol, the stress hormone, has been reported after just 3 days of meditation.

10,000+ Hours

Permanent Brain Changes

Long-term meditation practice has been shown to produce lasting structural and functional changes (trait changes) in the brain.

Integrated with Apple Health

Meditation sessions and HRV data are automatically saved to Apple Health. Manage your well-being holistically alongside your other health data.

Automatic meditation session recording
HRV data sharing
All data stored on your device

All you need for meditation is stillness.

No complex settings, no social media integration, no subscriptions. Just start the timer on a quiet dark-mode screen. An app made for meditation, and meditation alone.