InWave: Stress Monitor
HRV & Habit Tracker for Watch
Free · In‑App Purchases
Your Apple Watch already senses your stress. InWave turns HRV and heart-rate signals into a calm, daily read on your body—so you know when to push and when to rest.
InWave is your calm, science-based stress companion for Apple Watch. It reads the signals your body is already sending—Heart Rate Variability (HRV) and resting heart rate—and turns them into a clear daily picture of your stress and recovery. No noise, no alarm bells. Just a gentle, honest read on how you're really doing.
WHY HRV?
The tiny variations between your heartbeats reveal how your nervous system is coping. When HRV drops or your resting heart rate climbs above your usual range, your body is under strain. InWave watches these signals around the clock from your Apple Watch and translates them into four easy states—Great, Normal, Elevated, and Overloaded—so you always know where you stand.
BUILT FOR APPLE WATCH
• Continuous, automatic stress tracking from your wrist—no manual logging
• Add InWave to your watch face to see your latest stress state at a glance
• Reads HRV, resting heart rate, sleep, and activity straight from Apple Health
• Your health data is processed on your device and stays private—always
UNDERSTAND YOUR DAY
• A real-time stress timeline, one reading every few minutes, color-matched to your state
• A daily summary that explains why you feel tense or recovered
• Personal baselines learned from your own history—not generic averages
• Sleep and recovery insights tied to how you feel today
• A gentle nudge to take a 2-minute breathing reset when your body asks for a break
SEE THE BIGGER PICTURE (Pro)
• Weekly, monthly, and yearly trends for stress, HRV, and resting heart rate
• Stress distribution and time-of-day patterns—find what really sets you off
• Complete history, all the way back through your Apple Watch data
• Add notes to any reading to capture the context behind it
BUILD CALMER HABITS
• Track sleep, steps, water, mindfulness, sunlight, activity, and more
• Set gentle goals and watch your progress
• Log mood, caffeine, and hydration to connect cause and effect
A KINDER KIND OF HEALTH APP
InWave never shouts. The tone is warm, the design is soft, and the message is always supportive: slow down, recharge, and take care of yourself.
INWAVE PRO
Unlock long-term trends, complete history, the full habits dashboard, notes, premium watch faces, and an AI health assistant.
• Subscriptions are available on a monthly or annual basis, plus a one-time Lifetime option
• Payment is charged to your Apple ID at confirmation of purchase
• Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period
• Manage or cancel anytime in your App Store account settings
Terms of Service: https://legal.inwaveapp.com/terms
Privacy Policy: https://legal.inwaveapp.com/privacy
Apple Watch is not a medical device. InWave is intended for general wellness and informational purposes only and does not diagnose, treat, or prevent any medical condition. If you feel unwell or unable to cope, please seek professional help.
Ratings & Reviews
Thanks for using InWave! This update brings a smoother, calmer experience along with stability improvements to keep your stress and HRV insights accurate and reliable. We're always reading your feedback—keep it coming.
The developer, 书贞 牛, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 书贞 牛
- Size
- 148.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Japanese, Simplified Chinese, Traditional Chinese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Annual Pro $39.99
- Monthly Pro $12.99
- Special Offer $29.99
- Special Offer $89.99
- Special Offer $39.99
- Special Offer $119.99
- Copyright
- © InWave