NoStress: an HRV stress tracker for iPhone and Apple Watch

By Roman Resenchuk,

I'd like to introduce NoStress, an iOS app that tracks stress from heart rate variability. It shows your level in real time on the iPhone and on the wrist, and sends gentle check-in notifications when your body needs a pause.

The app turns HRV, resting heart rate, sleep and activity into a daily overview and monthly trends. It works with Apple Watch and Apple Health. Google Fitbit Air connects through Google Health, and other third-party devices work if they write to Apple Health.

A wide row of six App Store screenshots for the NoStress app. They show stress notifications on iPhone and Apple Watch, stress monitoring on the wrist with a Google Health card, stress level tracking, real-time charts, a daily overview and stress widgets on the Home Screen.
  • NoStress
  • HRV
  • stress tracking
  • Apple Watch
  • Google Health
  • Apple Health

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