rush
The world tells you to rush.
Your calendar fills. The street gets louder. Your heart rate rises.
VAYU
Predict. Prevent. Breathe.
The breath, finally guided.
Before you feel it
Your body is already speaking.
Vayu reads signals from your watch and your day to recognize when stress may be building.
What does Elevated mean?
BPM stands for beats per minute — how fast your heart is pumping. An elevated heart rate (above 100 BPM while at rest) means your body is under stress, even if you haven't noticed it yet. Vayu reads this from your smartwatch biometrics in real time and responds with a guided breathing protocol.
Understands the moment
Vayu knows when to step in.
The right moment, prescribed from your biometrics and context. Not an alarm, a quiet invitation to breathe.
Eyes off the screen
A breath you can finally feel.
Gentle haptics on your wrist guide the rhythm, so your eyes can stay on the world around you.
More than your breath
Your body responds. Vayu remembers.
Heart rate. HRV. Recovery. Vayu looks at what changed after you breathed.
What is HRV?
HRV (Heart Rate Variability) measures the variation in time between your heartbeats. Higher HRV means your body is recovering well and handling stress effectively. Vayu tracks HRV alongside heart rate and respiration to measure whether each breathing session actually worked.
practice
Rest is a practice too.
Sleep measured by your watch, history carried forward. The night feeds tomorrow's prediction.
Prevent
Your patterns become your personalization.
What worked. When it worked. How your body responded. Your guidance becomes more personal over time.
point
Tomorrow begins with what Vayu learned today.
Sleep and recovery become part of tomorrow's picture. Vayu keeps learning your rhythm.
Vayu Spaces
“What if the space breathes with you?”
Pod
A cocoon for one
Sphere
A room that breathes
Pavilion
A space for many
- Airports
- Hospitals
- Corporate offices
- Universities
- Hotels & resorts
- Private jets
Traction · Organic app store rankings
Top ranked, globally.
Vayu hit the top of Health and Fitness through organic growth, and now ranks across various countries worldwide.
Google Play · India
#1
Health & Fitness · New apps
Organic · Growth
iOS App Store
4.8★
Average user rating
Ranked in 15+ countries
Also ranking in
- Switzerland#12
- Finland#12
- Netherlands#12
- Poland#12
- Denmark#13
- Belgium#15
Our funding announcement, carried by
Pricing
Start free. Stay for the data.
One guided session a day costs nothing, no card required. Pro unlocks unlimited practice, the full technique library, and your physiology over time.
Free
$0
No card required · USD
What you get
- One guided session every day
- Watch app connectivity (Apple Watch and Wear OS)
- Basic session tracking
Pro
$59.99/year
7-day free trial, then $59.99/year. Cancel anytime.
Everything in Free, plus
- Unlimited daily sessions
- Breathe sessions: Box, 4-7-8, CBT, Extended Exhale
- Pranayam sessions: Bhastrika, Kapalbhati, Anulom Vilom
- Reset sessions to decompress and restore balance
- Curated sessions for any time of day
- Your physiology tracked over time
Common questions
Questions, answered plainly.
What is Vayu?
Vayu is a real-time biofeedback breathing app. It reads heart rate variability (HRV) from Apple Watch and Wear OS devices and guides your breath through wrist haptics the moment stress is detected, with no screen and no sound. Vayu supports 68+ smartwatch models and is used by 65,000+ people, with 64% Day-30 retention (2.5× category average).
How is Vayu different from Calm or Headspace?
Calm and Headspace play audio content through your phone. Vayu reads your physiology through your watch and responds to it in real time. Calm plays a track when you open the app; Vayu intervenes when your nervous system is dysregulated, even while your phone stays in your pocket. Vayu measures HRV live during every session. Calm has no HRV integration.
How does Vayu use Apple Watch?
Vayu reads real-time heart rate variability from Apple Watch during breathing sessions. As you breathe, your HRV changes. Vayu tracks this live and paces your breath through haptic taps on your wrist. You can watch your HRV improve in real time on the watch face, and your phone never has to leave your pocket.
What breathing techniques does Vayu include?
Box breathing (4:4:4:4), resonance frequency breathing (5 to 6 breaths per minute), 4-7-8 breathing, the Wim Hof method, and custom breath ratios. Every technique is available with haptic guidance on Apple Watch and Wear OS, with real-time HRV feedback during the session.
What is resonance frequency breathing?
Resonance frequency breathing synchronizes your breath with your heart rhythm to maximize heart rate variability. The optimal rate is typically 5 to 6 breaths per minute, roughly five seconds in and five seconds out, though it varies by individual. Vayu measures your personal resonance frequency from your HRV response and adapts its guidance accordingly.
Does Vayu work without a phone?
Yes. Your Apple Watch or Wear OS device guides your breath through wrist haptics and tracks your HRV on its own. You never need to look at a screen during a session.
What is heart rate variability (HRV)?
HRV is the variation in time between consecutive heartbeats, measured in milliseconds. Higher HRV indicates an adaptable, well-recovered nervous system; lower HRV is associated with stress, fatigue, and overtraining. Vayu measures RMSSD, the standard clinical metric for short-term HRV.
Is Vayu available on Android?
Yes. Vayu runs on Android phones and Wear OS watches, including Pixel Watch, Samsung Galaxy Watch, and 68+ smartwatch models in total. The iOS version supports iPhone and Apple Watch. Both include real-time HRV biofeedback and haptic guidance.
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