# StressBook: Watch HRV Tracker — Heart Health & Rate Monitor

> Apple Watch HRV tracker for stress, fatigue, and well-being management. (iPhone/iPad app by ScicoDream Network Technology Ltd.)

- Source: https://appshunter.io/ios/app/stressbook-watch-hrv-tracker/id6738070448 (this page in markdown: same URL + `.md`)
- Developer: [ScicoDream Network Technology Ltd](https://appshunter.io/developer/1036065748)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases (on sale, was $0.99)
- Rating: 5.00/5 from 3 App Store ratings · 32 written reviews indexed
- Age rating: 12+
- Requires: iOS 16.0 · 118 MB
- Languages: Australian English, Canadian French, German (Germany), Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Hong Kong SAR China)
- Released: 2024-12-29
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/stressbook-watch-hrv-tracker/id6738070448/reviews.md

## What is StressBook?

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.

--------------------------------------------------------------- 

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

## Key features

- HRV-based stress level monitoring
- Historical stress analysis
- Real-time stress and energy levels
- Breathing exercises for stress relief
- Water intake logging
- Kegel training
- Wellness tips from watch faces

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Pro | $19.99 | per year |
| Monthly Pro | $4.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro | $19.99 | one-time |
| Regret Card | $0.99 | one-time |
| Triple Effort Card | $0.99 | one-time |


## Recent user reviews (10 of 32)

All indexed reviews: https://appshunter.io/ios/app/stressbook-watch-hrv-tracker/id6738070448/reviews.md

### 1/5 — Can’t get past first screen

*2026-08-22*

Just downloaded this app it won’t go past the first boot up screen tried tapping moving screen up not having none of it very disappointed

### 1/5 — 割韭菜

*2026-07-27*

之前一元购买的，有实时测压力和看历史记录，其他功能需要内购。现在更新了直接把这两个功能阉割，要买会员才能看。感情一元钱不是钱。你们是欺诈师吗😅一元钱坐不了公交车，但能让我看到你们的恶心

**Developer response:** 您好，对于会员权益的调整我们很抱歉，但我们只有活下去才能给大家持续更新软件功能。但之前承诺的1元实时压力也确实是我们失信了，您可以选择在App内联系我们，我们可以给您提供最优惠的永久会员升级价格，或者您不愿意继续使用，我们也愿意直接加倍补偿您之前付出的App解锁购买付出。感谢您的支持与理解，期待收到您的联系。

### 1/5 — .

*2026-07-17*

买了之后的功能更新完变成收费用不了何意味

**Developer response:** 为了更好的给大家提供优质的内容，我们从付费软件切换到了免费+内购的形式，但如果是之前以完整价格付费购买的用户，都是默认赠予了新会员的，只有卸载或者切换设备，才可能会出现会员消失的情况，但也可以恢复会员的，在App内遵循恢复指引操作即可，感谢您的使用，祝您生活愉快

### 1/5 — 骗子软件

*2026-07-11*

已经付费了又要重新付费

**Developer response:** 为了更好的给大家提供优质的内容，我们从付费软件切换到了免费+内购的形式，但如果是之前以完整价格付费购买的用户，都是默认赠予了新会员的，只有卸载或者切换设备，才可能会出现会员消失的情况，但也可以恢复会员的，在App内遵循恢复指引操作即可，感谢您的使用，祝您生活愉快

### 2/5 — 花一元买，进去还得二次消费

*2026-05-01*

刚开始觉得是stress watch 山寨版，想说一元钱试试，结果进去还得花钱才能买终身会员。虽然只要28，但是心情一下子就败坏了，而且功能图标那些还不如sw免费版。分析睡眠还得另外下载app。一元也是钱。希望能讲清楚这些，别人好判断花不花这一元。

### 1/5 — 步数刷新太慢太延迟了

*2026-04-08*

就步数而言同款软件都刷新半小时以上了，这个还没刷新，其它方面还没测出

### 5/5 — 感恩感谢

*2026-03-12*

非常感恩感谢这款软件，检测全面！期待更多的惊喜，祝这款app越来越好，造福更多的人健康监测

### 1/5 — 请帮我打开权限

*2026-02-09*

我2024年12月31日开通过会员，卸载以后无法恢复会员功能了

### 5/5 — 简单，明了，方便，实惠

*2025-11-05*

最实惠的hrv监测软件，各种功能都在不断更新添加，为手表新增了很多有趣实在的功能，希望官方可以出更多的官方图标，加油！

### 2/5 — Zeigt leider falsche Werte an

*2025-10-10*

Die App schaut auf den ersten Blick gut aus. Integration in die Apple auch ist auch gut. 
Allerdings zeigt die App nicht die korrekten Werte an, die auch gemessen wurden. Einfacher Vergleich mit der Health App zeigt das oft. 
Schade…

**Developer response:** Hallo! Vielen Dank für Ihr Feedback – und entschuldigen Sie bitte die Verwirrung.

Das unterschiedliche Ergebnis ist in diesem Fall tatsächlich kein Bug, sondern bewusst so gestaltet: Apple Health berechnet die HRV in der Regel mit SDNN. Dieser Wert eignet sich eher, um längerfristige Belastung/Stress über einen Zeitraum hinweg abzubilden.
In unserer App verwenden wir hingegen rMSSD, weil dieser Wert kurzfristige Veränderungen der HRV besser widerspiegelt und damit aus unserer Sicht besser geeignet ist, um den aktuellen bzw. jüngsten Stresszustand im Alltag zu beschreiben.

Aus Platzgründen kann ich hier leider nicht ausführlicher in die Methodik einsteigen. Wenn Sie möchten, können Sie gerne nach wissenschaftlichen Veröffentlichungen zu SDNN vs. rMSSD suchen – aber bitte glauben Sie uns: Wir haben uns bewusst für rMSSD entschieden, weil wir es für einen täglichen Stress-Indikator als passender ansehen.

Wenn Sie möchten, kann ich Ihnen auch kurz erklären, wie Sie beide Werte sinnvoll nebeneinander interpretieren können.

## Frequently asked questions about StressBook

### What is StressBook's price?

StressBook is a paid app priced at $0.99. This one-time purchase grants you access to all its features for monitoring and managing your stress and well-being.

### Does StressBook have ads?

No, StressBook is ad-free. You can use the app without any interruptions from advertisements, ensuring a focused experience on your health data.

### What devices does StressBook support?

StressBook is designed to work with both the iPhone and Apple Watch. It leverages data from your Apple Watch to provide comprehensive insights on your iPhone.

### How accurate is StressBook's HRV measurement?

StressBook aims for accurate real-time HRV measurement, but this feature requires Apple Watch ECG support and may not be available on all models or in all regions. Always consult a healthcare professional for medical advice.

### How often is StressBook updated?

The latest version of StressBook is 1.6.4, last updated on March 15, 2026. This indicates a commitment to ongoing development and improvements for the app.

### What age rating does StressBook have?

StressBook is rated for users aged 12 and older. This rating suggests the content and features are appropriate for teenagers and adults.

### Does StressBook integrate with Apple Health?

Yes, StressBook integrates with Apple Health to read heart-related data from your Apple Watch. This integration is essential for the app to function correctly and provide personalized reminders and suggestions.

### Where is my health data stored in StressBook?

Your health data is stored locally on your device. StressBook does not upload any of your health data, ensuring your privacy and security.

## Version history (last 5 releases)

### 1.7.9 — 2026-08-22

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.

### 1.7.8 — 2026-08-18

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.

### 1.7.7 — 2026-08-16

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.

### 1.7.6 — 2026-08-11

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.

### 1.7.5 — 2026-08-10

Neu:
1. Ein komplett neuer Einstieg in die App – klarer und durchdachter.
2. Echtzeit-Stress hat jetzt eine „Zusammenfassung“: der Verlauf der letzten 28 Tage, dein durchschnittlicher Stress, die Anzahl der Tage mit hoher Belastung samt Gesamtdauer sowie der Unterschied zwischen Trainingstagen und Ruhetagen.
3. Echtzeit-Stress hat jetzt eine Tagesansicht: ein Überblick über den Tag, jede Phase mit hoher Belastung einzeln aufgeschlüsselt und der Stressverlauf vor, während und nach dem Training.
4. Drei neue Segment-Designs für das Zifferblatt „Sommer-Trio“: „Arcade“, „Neon“ und „Bonbon“.

Vielen Dank für deine Nutzung und dein Feedback. Teile uns deine Ideen gerne über die Einstellungen mit.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*