Stress Monitor & HRV: Stressi
Sleep & Recovery, Any Watch
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Your Apple Watch (or just your camera) knows how stressed you are. Stressi turns that into one daily Stressi Score — then tells you exactly what to do next.
Know how much stress your body is carrying, before it costs you the day.
Stressi is a stress monitor and HRV tracker that turns Apple Health data into one clear daily score: your Stressi Score. It reads heart rate variability, resting heart rate, sleep and activity, then explains what changed and what to do about it today.
No charts to decode. No account to create. Your readings stay on your iPhone.
WHY PEOPLE USE STRESSI
• Check your Stressi Score before training, a hard work day or a rest day
• See whether sleep, HRV, heart rate or activity moved your score
• Get a short, specific plan instead of raw graphs
• Track stress, sleep, energy and fatigue trends in one place
• Know exactly when your health data was last synced
• Keep every reading private, on device, with no sign-up
APPLE WATCH GIVES THE SHARPEST READ
Wear your Apple Watch and Stressi builds your score from continuous HRV, resting heart rate, sleep and activity data — the fullest picture of how your body is recovering.
NO WATCH? YOUR CAMERA WORKS TOO
Don't have an Apple Watch, or left it charging? Take a 30-second Camera HRV reading instead: hold your fingertip over the rear camera and flash, and Stressi reads your pulse directly. It's a real HRV reading and feeds the same Stressi Score — a wearable's continuous sensor is still sharper, but you're never locked out. Free for everyone, no Pro required.
HOW IT WORKS
Stressi compares today's signals against your own recent baseline, not a population average. Your Stressi Score is built from recovery, stress load, sleep quality, heart rate variability, resting heart rate and recent activity.
WHAT'S INCLUDED
• Daily Stressi Score
• Why-it-changed explanations for every move
• Today Plan with simple next steps
• HRV, sleep, heart rate, activity and energy signals
• Camera HRV check when you don't have your watch
• 7-day trends and baseline-aware patterns
• Manual refresh and data freshness indicators
STRESSI PRO
• 30, 90 and 365-day Stressi Score trends
• Deeper patterns, triggers and signal breakdowns
• Recovery forecasts and premium daily plans
• Guided programmes, reports, exports and journal correlations
• Guided breathing and advanced widgets
PRIVACY FIRST
Your health data stays on your device. No accounts, no cloud sync, no third-party tracking. Stressi is built for people who want a real physiological read without handing over their health history.
SUPPORTED LANGUAGES
English, Spanish, German, French, Italian, Portuguese, Japanese, Korean, Chinese
See your stress, understand what changed, and recover with a plan.
Terms of Use: https://noloman.github.io/stressi/terms/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Clearer insight into your day.
- A one-line reason now sits under the Home gauge, so you can see what is driving your score.
- History adds a 7, 14 and 30-day view of load versus recovery.
- Breathing sessions are now saved to Apple Mindful Minutes.
- Fixes for the Apple Watch app.
Your Body State, your signals and your data are unchanged. Everything still stays on your iPhone.
The developer, Manuel Lorenzo Parejo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Manuel Lorenzo Parejo
- Size
- 32.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Stressi Pro Annual $24.99
- Stressi Pro Monthly $3.99
- Copyright
- © 2026 Manuel Lorenzo
