Vela HRV

Stress is invisible. But it can be measured. Vela analyzes your heart rate variability (HRV) from your Apple Watch and turns it into a number that makes sense for you — not for a statistical average. Everyone's HRV is different. That's why Vela builds your personal baseline during the first few days and uses it as a permanent reference. Your stress score is yours, calculated against your own history. The essentials, without the noise - Personalized 0–100 stress score - Passive background measurement - Daily, weekly and monthly history - On-device processing — no external servers Your data, yours alone. Sync happens through your own iCloud. Vela has no servers. No mandatory subscription. Requires Apple Watch with watchOS 26 or later.