# Stress Scan: HRV Stress Check — Measure Autonomic Nerve & HRV

> Smartphone app measures mental and physical stress using heart rate variability analysis. (iPhone/iPad app by Stress Scan Inc..)

- Source: https://appshunter.io/ios/app/stress-scan-hrv-stress-check/id673503525 (this page in markdown: same URL + `.md`)
- Developer: [Stress Scan Inc.](https://appshunter.io/developer/1182904076)
- Category: Medical, Health & Fitness
- Price: Free
- Rating: 3.70/5 from 214 App Store ratings · 121 written reviews indexed
- Age rating: 12+
- Requires: iOS 17.0 · 62 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish and 3 more
- Released: 2013-08-01
- Data updated: 2026-10-29
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/stress-scan-hrv-stress-check/id673503525/reviews.md

## What is Stress Scan?

Check your current stress score from 1 to 100 simply by placing your finger on your smartphone camera!
With over 3 million downloads, "Stress Scan" is back with a major renewal. It analyzes your autonomic nervous system balance through your pulse to visualize the stress on your mind and body.

Back by Popular Demand!
Once scheduled to end, Stress Scan is back due to overwhelming user request! We have relaunched with a fresh new design and upgraded features.

Featured in Major Media!
Featured on popular Japanese TV shows like "Matsuko's Unknown World," "King's Brunch," "HikakinTV," and in leading magazines such as "AERA" and "Tarzan"!

Do Any of These Sound Familiar?
・Feeling overwhelmed by recent stress or fatigue
・Struggling to recover even after taking time off
・Experiencing ongoing fatigue or feeling out of sorts
・Sensing that your autonomic nervous system is out of balance
・Wanting to objectively track your stress level as a number
・Wanting to check your nervous level before an important event

Key Features of Stress Scan
・Quick 60-Second Stress Assessment
Simply place your fingertip over the smartphone camera and light. Based on Heart Rate Variability (HRV) analysis, it measures your current stress state. Heart rate (bpm) is also measured simultaneously.

・Identify Stress Causes With Tags
Tag your situation (e.g., Working, Day Off, Post-Exercise) during measurement to view average stress scores for each context. Discover when and where you feel most stressed.

・Build a Habit With Reminders
Set custom notification alarms at your preferred times to make daily self-care a consistent habit.

・Easy Data Transfer When Upgrading Devices
By registering an account, you can easily transfer your measurement history to a new device. *You can also use the app without creating an account.

More new features are scheduled to launch soon!

How Does a Smartphone Camera Measure Stress?
It is scientifically proven that stress and fatigue disrupt the balance of the autonomic nervous system, which controls essential bodily functions.
Stress Scan detects subtle blood flow (pulse) changes through your phone camera to analyze your autonomic nerve balance:
Sympathetic Dominance (Higher heart rate, low variability) → Higher Stress Score
Balanced Autonomic State (Calmer heart rate, higher variability) → Lower Stress Score

Grounding in Trusted Science
Our measurements are based on Heart Rate Variability (HRV) analysis—a widely recognized methodology in heart rate and autonomic nervous system research. HRV analysis is an advanced stress-care technology utilized in high-stakes fields, including PTSD treatment for veterans by the U.S. Military and health management for astronauts at NASA.

Great for Various Everyday Situations!
・Daily health checkups and condition monitoring
・Measuring relaxation levels during meals or hobbies
・Checking the calming effect of travels or favorite places
・Gauging tension before big presentations or exams
・Sharing measurement results on social media with friends and family

Tips for Accurate Measurement & Stress Care*Individual responses to stress may vary.
・For Accurate Results: Heart rate increases after meals or workouts, which can temporarily inflate your score. Please measure while seated quietly at rest.
・Age Trends: Stress scores naturally tend to increase with age.
・When Your Score Is High: Take slow, deep breaths to help your body relax.
・Lifestyle Habits: Prioritizing sufficient sleep, moderate exercise, and weight management helps maintain a lower stress score over time.


Note: The advice provided within Habitone is for informational purposes only and is not a substitute for professional medical advice or diagnosis. Always consult with a doctor or specialist for medical decisions.
Terms of Use: https://www.dumsco.com/policy/B9awe89fwkcw5iXzGQYT/en

## Key features

- Measure stress level (1-100)
- Analyze heart rate variability
- Assess autonomic nervous system balance
- Track daily stress
- Check effects of meals/drinks on stress
- Monitor relaxation

## What do users think of Stress Scan?

Reviews of Stress Scan are mostly negative: the Medical app is rated 3.7/5 from 214 App Store ratings. What users like most: camera-based heart rate measurement, easy to use for some users. Top complaints: inaccurate stress measurements, inconsistent readings. Summarized from real user reviews.

**Pros**

- 💡 Camera-based heart rate measurement
- 👍 Easy to use for some users
- 📈 Useful for tracking heart rate trends
- 🤔 Can help identify potential health issues
- 📊 Good for record-keeping of subjective stress

**Cons**

- 📉 Inaccurate stress measurements
- ⚠️ Inconsistent readings
- ❌ Does not work for many users
- 📱 Camera scanning issues
- 🤔 Unclear measurement methodology
- 😠 Frustrating login/registration issues
- 💸 Unwanted ads
- 🔥 Device overheating during measurement

**Commonly reported bugs**

- App crashes or freezes
- Login/registration errors
- Camera not detecting finger or providing erratic readings
- Data overwriting
- App redirects to other apps (e.g., Instagram)
- Notifications are stressful
- Device overheating when measuring
- Inconsistent readings between devices (Xperia vs. iPhone)
- App not working on newer iPhone models
- Cannot sign in or create an account

**Most requested features**

- Improve accuracy of stress measurement
- Allow one-handed operation for measurement
- Add a remedy section for high stress results
- Integrate with Apple Health/Fitbit
- Add respiration and sleep data for stress assessment
- Increase character limit for memo function
- Add support for more languages (Traditional Chinese, English)
- Offer an ad-free version
- Develop an Apple Watch app
- Provide clear instructions on which lens to use
- Allow account deletion
- Add a 'love scan' feature

## Is Stress Scan safe?

Stress Scan: HRV Stress Check appears mostly safe based on user ratings. The AppsHunter Safety Score for Stress Scan is 74 out of 100. This assessment is based on 214 user ratings, with an App Store average of 3.7 out of 5. Of 214 App Store ratings, 66.4% point to a safe experience, 7.9% suggest some concerns, and 25.7% point to a risky experience.

## Is Stress Scan legit?

Stress Scan: HRV Stress Check appears to be a legitimate app. The AppsHunter Legitimacy Score for Stress Scan is 88 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (10 of 121)

All indexed reviews: https://appshunter.io/ios/app/stress-scan-hrv-stress-check/id673503525/reviews.md

### 1/5 — 鬱で休職中なのに？

*2025-05-06*

うつ病で休職中なのにストレスなしで精神状態が非常に安定していると何度測定しても結果が出ます。睡眠もまともに取れていない状態なのに？

### 5/5 — ねえねえ

*2025-04-28*

今春にサービス終了して消えるんじゃないの？全然まったくこのアプリ消える気配ないけど…

### 3/5 — 片手だけでストレスを測定できるように改良して下さい

*2025-01-21*

片手しか使えない私は測定中に表示される次へをタップするとレンズに当てている指が動きえらーになってしまいます片手だけでストレスを測定できるように改良をお願いいたします
厳しいとは思いますがこの点を減点として★2つマイナスしました

### 4/5 — 脈拍はおおよそあってると思う

*2024-12-31*

ストレスで脈が飛ぶ感覚がたまにあり、ちょうど継続中にその感覚が来てさてどうなる！と思ったらちゃんとめちゃめちゃ飛んでました。びっくり。
こんなんで取れんのかよ脈、なんで半信半疑でいたのですがまさかの正確さに正直驚きました。

### 1/5 — Useless

*2024-11-26, version 3.14.3*

No matter how stressed I am, I am freaking out about something, can’t sleep, I am jumping and it says my stress level is 1%. Junk!

### 1/5 — The app is stressful

*2024-10-04*

This app has yet to actually measure my stress. I turned my phone off thinking that would work. Turned it back on and it still didn't work. So I deleted the app and loaded it freshly. It's still not measuring my stress. So I have labeled this app as stressfuland I'm deleting it for good now.

### 1/5 — Doesn’t work anymore

*2024-08-10, version 3.14.3*

I have an iPhone 15 with three lenses and this app no longer works.

### 5/5 — Android版

*2024-07-18*

コメント失礼します。Android版はあるんですか？教えていただていただきたいです。

### 1/5 — Very Innacurate

*2024-06-17*

Okay so here’s the deal. I got this app thinking that it would just measure my heart rate and I would get a normal report. But how does it make sense that at RESTING, my heart going from 43 bpm up to 145+ bpm! This app is very bad at measuring your heart rate so do not use it.

### 2/5 — Wrong measurement

*2024-06-08, version 3.14.3*

I was lying down and the measurements showed 48-52 bpm. Sounds reasonable even if on the low side.
Then the measurements exploded to totally unreasonable values above 100.
Maybe the app wants to stress you?

## Frequently asked questions about Stress Scan

### What does StressScan do?

StressScan analyzes changes in your heart rate by having you place your finger over your smartphone's camera for two minutes. It scientifically measures your mental and physical stress levels on a scale of 1 to 100 based on the balance of your autonomic nervous system.

### How does StressScan measure stress?

The app uses heart rate variability analysis, a medically recognized technology. By analyzing the waveform of your heartbeat at the fingertip, it assesses the balance of your autonomic nervous system, which can be disordered by fatigue and stress.

### Is StressScan accurate and trustworthy?

The technology behind StressScan is based on heart rate variability analysis, widely recognized in heart rate and autonomic nervous system research. This technology is used by medical institutions, the US military for PTSD treatment, and NASA for astronaut health management.

### What are the use cases for StressScan?

You can use StressScan for periodic checking of your daily stress level, assessing the effects of meals and drinks on your stress, and monitoring your relaxation while traveling or in a favorite spot.

### What are the device and environment requirements for StressScan?

StressScan requires a smartphone equipped with a camera and flash. An internet connection is also necessary for the app to perform complex stress analysis using external support for measurement functions.

## Version history (last 5 releases)

### 4.0.0 — 2026-10-27

Back by popular demand! Thanks to your amazing feedback, Stress Scan has been relaunched with a major renewal!

Update
- Completely redesigned UI: Check your daily results and data more intuitively with a fresh, modern look.
- Upgraded accuracy & stability: Optimized Heart Rate Variability (HRV) analysis logic for a smoother user experience.

### 3.14.4 — 2025-03-18

With the renewal to our new app, "Habitone," we've added an announcement regarding the discontinuation of the current service.

### 3.14.3 — 2021-01-07

From this version, this app requires iOS 13 or higher.

* Support iPhone 12 Pro Max
* Sign in with Apple

### 3.14.2 — 2019-11-22

Bug fixes

### 3.14.1 — 2019-10-31

- minor bug fixes

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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 2026-10-29.*