Calm Alternative
A Calm alternative that reads your nervous system
Calm plays audio when you open the app. Vayu reads your heart rate variability from Apple Watch and responds to what your nervous system is actually doing. Different tools for different outcomes.
Try Vayu FreeVayu vs Calm: feature comparison
| Feature | Vayu | Calm |
|---|---|---|
| Real-time HRV measurement | ✓ | ✗ |
| Haptic guidance (no screen needed) | ✓ | ✗ |
| Works with Apple Watch natively | ✓ | watchOS app (content only) |
| Responds to your physiology | ✓ | ✗ |
| Audio meditations and sleep content | ✗ | ✓ |
| Free tier | ✓ | ✓ |
| Guided breathwork sessions | ✓ | ✓ |
The core difference
Calm
A content library. Guided meditations, sleep stories, soundscapes. It plays audio when you choose to open it. Your Apple Watch shows you are using Calm, but it does not read your HRV or respond to your physiology. Good for winding down with curated content.
Vayu
A biofeedback platform. It reads your RMSSD (heart rate variability) from Apple Watch in real time and delivers haptic breathing guidance on your wrist. No audio. No content. Just your nervous system state, measured and responded to live. 64% Day-30 retention, 2.5x the mindfulness app average.
Frequently asked questions
What is the best Calm alternative with HRV tracking?
Vayu is a real-time HRV biofeedback breathing app for Apple Watch and WearOS. Unlike Calm, which delivers audio content through your phone, Vayu reads your heart rate variability live and guides your breath through haptic pulses on your wrist.
How is Vayu different from Calm?
Calm is a content app: it plays audio meditations when you open it. Vayu is a biofeedback app: it reads your HRV from Apple Watch in real time and responds to your actual nervous system state with haptic breathing guidance. Calm has no HRV integration. Vayu has no audio content.
Does Vayu work without a subscription?
Yes. Vayu has a free tier that includes core breathing techniques with haptic guidance and HRV tracking. Premium adds advanced techniques, session history, and trend analytics.
Try biofeedback breathing free
No audio library. No sleep stories. Just your Apple Watch reading your HRV and guiding your breath through haptics.
Download Vayu FreeAlso available: Headspace alternative
