StressBook: Watch HRV Tracker1.9.2 - App Store

StressBook uses Apple Watch health data-such as HRV (heart rate variability) and resting heart rate-to help you understand physical fatigue and psychological stress. It sends timely reminders to keep you mindful of your stress state and helps you learn to regulate and manage stress so your body and mind stay in a comfortable, balanced state.
Through data analysis, it provides valuable insights to help you find inner calm and ease.

◎ What StressBook can help you do
* Quickly view your current HRV-based stress level on your iPhone and Apple Watch
* Explore detailed, comprehensive historical analyses to better understand your stress cycles
* See real-time stress, vitality, and body energy levels
* Review daily health indicators on the Insights page
* Log water intake, with configurable drinks such as coffee, milk tea, and more
* Relieve stress and anxiety with multiple breathing exercises and improve sleep onset
* Do Kegel training
* Measure accurate HRV in real time (this feature requires Apple Watch ECG support and is not available on all models or in all regions)
* Tag stress records and add notes for easy review
* Get wellness tips from wellness-focused watch faces

◎ Apple Health integration
StressBook reads heart-related health data from your Apple Watch via Apple Health. StressBook requires read permissions from Apple Health to send reminders, track stress moments, and provide suggestions; otherwise, it cannot function properly. Rest assured, your health data is stored locally on your device-we do not upload any of your health data.

◎ Health advice disclaimer
All information and suggestions provided by StressBook are not medical advice or a diagnosis and should not replace professional diagnosis or treatment. If you feel overly stressed and unable to cope, or before making any medical decisions, please seek help from a qualified healthcare professional promptly.

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Terms of Use: https://swiftflamel.com/stressbookseula/
Privacy Policy: https://swiftflamel.com/privacy-policy-for-stressbook/

Version History 1. Custom themes can now be created directly from a file
2. Fixed a crash on iOS 27
3. The Mood Strip's watch face theme order can now be rearranged left and right
4. Faster loading on Apple Watch
5. Simplified the complexity of some features 1.9.2 4d ago 1. New Mood Strip complication shows all four states at once
2. Give the Mood Strip a theme of its own — built-in characters and your own themes both work
3. Adjust the Mood Strip's spacing and highlight outline freely, from either your iPhone or your watch
4. The watch Hydration complication gains a corner style for the corners of your watch face
5. Body Age now comes with an FAQ 1.9.1 Sep 19 1. New Body Age estimation is now available
2. Improved time display in watch face complications
3. Redesigned History page with more data and more interesting heatmaps
4. Theme images can now be rotated and mirrored when you create them 1.9.0 Sep 9 Fixed an issue that prevented widgets from appearing. 1.8.1 Aug 31 The all-new Theme Park is open!

New features:
• Browse and search themes shared by the community. Sort by Popular or Newest, and get favorites without entering a redemption code.
• Preview every stress state in theme details and see whether it’s animated or still. You can also report inappropriate content.
• Hydration reminders on Apple Watch now show your current hydration theme and today’s progress, with quick actions to log water directly from the notification.

Experience upgrades:
• Preview Summer Trio backgrounds before saving. They sync to Apple Watch only after you confirm.
• Hydration screens, cards and widgets on Apple Watch now follow your preferred unit and quick-log presets.

Thank you for using the app and sharing your feedback. You’re welcome to send us your ideas from Settings. 1.8.0 Aug 29 Real-time stress is now open to everyone!

New features:
Real-time stress summaries on the watch now come with your theme.

Fixes and improvements:
Improved the balance between the theme and the text in watch notifications.
Improved the status shown on the watch home screen while data is still being calculated.

Thank you for using the app and sharing your feedback. You’re welcome to send us your ideas from Settings. 1.7.9 Aug 22 The back-to-school sale is now on!

Fixes and improvements:
Improved the design and fixed issues in the onboarding flow.

Thank you for using the app and sharing your feedback. You’re welcome to send us your ideas from Settings. 1.7.8 Aug 18 What’s new:
A brand-new onboarding flow: reworked HRV explainers with real-life illustrations, plus a personalized stress analysis before you finish.
Real-time stress, refreshed: added today’s stress load and a recovery trend line, workouts are filtered out automatically, and sleep and awake hours are counted separately.
Custom home animations: choose which animations play at random on the home screen and build your own pool.

Fixes and improvements:
Fixed an issue where real-time stress alerts could use outdated data.
Fixed a crash that could happen while checking Health permissions during onboarding.

Thank you for using the app and sharing your feedback. You’re welcome to send us your ideas from Settings. 1.7.7 Aug 16 Fixes and improvements:
Fixed an issue where the onboarding flow could get stuck.

Thank you for using the app and sharing your feedback. You’re welcome to send us your ideas from Settings. 1.7.6 Aug 11 New:
1. A brand-new onboarding flow: clearer and more polished.
2. Real-time stress now has a “Summary”: the trend of the last 28 days, your average stress, how many days ran high and for how long in total, plus the difference between workout days and rest days.
3. Real-time stress now has a single-day detail view: an overview of the day, a breakdown of every high-stress stretch, and how stress changed before, during and after a workout.
4. Three new segmented skins for the Summer Trio watch face: Arcade, Neon and Candy.

Thank you for using the app and sharing your feedback. You’re welcome to send us your ideas from Settings. 1.7.5 Aug 10 New:
Brand-new hydration widgets for iPhone, so you can check your progress on the Home Screen and log a drink with a single tap.
New drink reminders, with customisable time ranges, reminder intervals and what happens once you reach your goal.
New Summer Trio hydration watch face templates (including a pool version), and watch face templates now have their own entry in Settings.
Three new hydration background themes, plus a choice of backgrounds for the hydration card on the Summer watch face.

Fixes and improvements:
Improved the layout and interactions of the theme redemption screen.
The Relax screen now remembers the category you last selected.
Adjusted the height of the watch face widget entry.
Fixed an issue where a real-time stress alert could be delivered at the same time as an HRV alert.

Thank you for using the app and sharing your feedback. You’re welcome to send us your ideas from Settings. 1.7.3 Aug 8 New:
StressBook members can now claim a substantial discount on MoMoSleep membership.

Fixes and improvements:
Members can now use all Heart Coin decorations directly.
The breathing exercise interface has been refined and improved.
Fixed an issue where dragging the date bar at the top of the Insights screen could cause it to flicker in certain situations.

Thank you for using the app and sharing your feedback. You’re welcome to send us your ideas from Settings. 1.7.2 Aug 4 This update mainly improves the Apple Watch experience and fixes a display issue on the Insights screen.

【Improvements】
· Swiping up and down between the Apple Watch Home and Today screens is now more responsive, without getting stuck halfway through a transition.
· The title at the top of the Apple Watch Home screen now uses shorter wording, so it is no longer cut off in German, Spanish, and other languages.
· The HRV card title on the Apple Watch Today screen is now clearer. The app name and version number have moved to the bottom of the screen, giving Home a cleaner look.

【Fixes】
· Fixed an issue where the date bar at the top of the Insights screen could have an incorrect collapsed state or a transparent background after switching tabs and returning.

Thank you for using the app and sharing your feedback. You can send us your ideas from Settings. 1.7.1 Jul 29 1. Watch-face mascot Booky gets a brand-new look
2. New full-width floating watch face with greatly enhanced visuals
3. Real-time stress notifications: choose the interval and stress range
4. New workout summaries and heart rate zone analysis
5. Existing watch faces and Watch interface optimized 1.7.0 Jul 24 Optimized and fixed some logic issues. 1.6.8 Jul 9 1. Sun Protection Watch Face Upgrade: Added temperature display and three new sun protection companions: Bread, Pan-Fried Dumpling, and Shengjian Bao
2. Optimized sync logic
3. Updated membership model: Added subscription membership 1.6.7 Jul 9 1. Adjusted custom skin creation strategy. You can now create and redeem without Heart Coins
2. Fixed an issue where Roast Duck Sunscreen watch face data could not update
3. Optimized the logic for breathing training cycle count and duration
4. Added a completion summary card for breathing/Kegel training
5. Fixed an issue where transferring custom skins to watch could occasionally fail
6. Fixed an issue where the watch might not receive notifications when only watch notifications were enabled 1.6.6 May 29 1. Custom themes can now be used locally without spending Heart Coins
2. Fixed an issue where saving target adjustments for daily health check-ins was unclear
3. Optimized some logic and copy 1.6.5 Apr 21 1. Added Flights Climbed data: Daily health check-in, Insights page, and watch widgets now supported (launched together)
2. During Breathing Relaxation and Kegel Relaxation training, background music and voice guidance can now play while the screen is locked
3. Improved some UI control logic for relaxation training
4. Fixed an issue where the monthly and yearly heatmaps did not follow the custom week start (Sunday/Monday) for each month
5. Fixed an issue where data such as Water Intake and Blood Oxygen could not display properly on the Insights page 1.6.4 Mar 15 1. Added background music and voice cues to Breathing/Kegel training
2. Improved some onboarding copy
3. Improved the display of some watch faces
4. Fixed an issue where the top countdown text was incorrect after starting Kegel training 1.6.3 Jan 28 1. Optimize the content of the first-time onboarding page
2. Optimize the content of the custom theme sharing page 1.6.2 Jan 21 Add member badge
Add a re-check button for legacy users 1.6.1 Jan 6 1. Reduced Heart Coin cost when creating and redeeming custom themes
2. Increased Heart Coin earning speed for members
3. Added membership system 1.6.0 12/31/2025 1. Improved custom theme resolution; it now looks sharper on Apple Watch
2. Added a linked discount with MoMoSleep
3. Fixed some UI issues
4. Optimized some logic 1.5.6 12/14/2025 1. The basic sleep data is now displayed directly on the Insights page
2. The circular watch-face widget now supports custom themes
3. The circular watch-face theme now supports real-time stress data
4. Fixed some logic issues 1.5.5 11/20/2025