Comparison

N2 Studios vs StressTracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

N2 Studios

Access your personalized member portal to sign up for classes, manage your membership, and stay updated on studio events. This application provides convenient access to all your studio needs.

Highlights
  • Personalized member portal
  • Class sign-up
  • Membership management
  • Studio event updates
Features
Read full description

Download this app and access your personalized member portal to sign up for classes, manage your membership, and stay in the know about the events of N2 Studios

About

StressTracker

This app analyzes heart data from your Apple Watch to assess psychological stress levels and monitor mental, emotional, and physical states. It provides detailed charts and intelligent reminders to help you understand and manage stress over time.

Highlights
  • AI-powered stress assessment
  • HRV data analysis
  • Multi-dimensional stress charts
  • Intelligent stress reminders
  • Apple Health integration
  • Local data storage
Features
Read full description

------------Designed for Apple Watch Users Stress Self-Assessment Tailored for Apple Watch Users: It analyzes your heart data and displays your current psychological stress levels, as well as your mental, emotional, and physical states. With your watch, it's a great tool for stress self-assessment, monitoring, and recording, as well as detecting stress. ------------Measure Psychological Stress Anytime When wearing your Apple Watch, it automatically generates HRV (heart rate variability) data. The Stress Self-Assessment App analyzes HRV data, combined with resting heart rate, age, and other factors, to provide a comprehensive stress assessment level. This process requires no intervention, but you can also use mindfulness apps or ECG apps on your watch for quick psychological stress tests and monitoring, obtaining HRV values and psychological stress status. ------------Multi-Dimensional Full-Cycle Data We provide multi-dimensional, full-cycle psychological stress data charts, allowing you to intuitively understand changes in stress trends and psychological pressure over longer periods. This includes weekly, monthly, and yearly stress trend charts, stress frequency statistics, stress period statistics, stress scatter plots, and more. We offer comprehensive psychological stress data charts to help you clarify the root causes of stress, manage emotions, and improve mental health. ------------Intelligent Psychological Stress Reminders With stress reminders, you can timely perceive changes in your psychological stress status. When new HRV data is generated, the Stress Self-Assessment App automatically sends a notification to your watch or phone, reminding you to pay attention to your psychological stress status and maintain good physical health. ------------Automatic Health Check-Ins Leveraging powerful Apple Health integration, we combine seven health habits including steps, sleep duration, mindfulness duration, hydration, hand washing, standing time, and energy burn. This helps you easily understand these data points, promoting robust physical health and a pleasant inner state. ------------Privacy and Security We understand your personal health data is sensitive. Stress Self-Assessment only directly reads data on your device via the Apple HealthKit API, and all your data is stored locally. ------------------------------------------------------------ Advanced Membership Subscription Explanation: By becoming an advanced member of Stress Self-Assessment, you unlock all paid features, enjoy free updates for future advanced functionalities, and a commitment to ad-free service. Upon Purchase Confirmation and Payment: Your subscription will be automatically renewed via your iTunes account. Apple iTunes will charge you within 24 hours prior to the end of the current period, extending the subscription period upon successful payment. To cancel the renewal, manage auto-renewal in iTunes/Apple ID settings at least 24 hours before the current period ends. During the trial period, if not canceled, your iTunes account will be charged and the trial period unused will be forfeited upon subscription purchase. This service allows you the choice to cancel, and if not canceled, it will automatically renew for the next billing period. User Agreement: https://fish.iibear.com/policy/ Privacy Policy: https://fish.iibear.com/private/ Disclaimer: Data and statements from the Stress Self-Assessment App do not constitute medical advice, diagnosis, or treatment for any individual or patient case. They should not replace professional medical advice, diagnosis, or treatment. If you experience any discomfort, whether physical or psychological, seeking timely medical attention is recommended.

Screenshots

N2 Studios4 screens
StressTracker4 screens

Verdict

The call

The clearest difference is review sentiment: StressTracker at 75% against N2 Studios's 0%. StressTracker also leads on rating (4.7 vs 3.8) and update cadence (every 2 weeks vs every 15 months). N2 Studios's advantage is in-app purchases (none vs 10) and iOS requirement (9.0.0 vs 15.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. StressTracker sells 9 in-app purchases, starting at $4.99 per 7 days. N2 Studios asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

StressTracker holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: StressTracker has 444 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of N2 Studios's written reviews are positive against 75% of StressTracker's.

UpkeepUpdate frequency

N2 Studios ships an update every 15 months, StressTracker every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard7 real differences · 3 level
N2 Studios versus StressTracker: the parameters behind the verdict, then further details
ParameterN2 StudiosStressTracker
PriceFreeFree
Rating3.8 (5 ratings)4.7 (444 ratings) — better
Positive reviews0.0% of reviews75.4% of reviews — better
Number of ratings5444 — better
Update frequencyEvery 15 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS9.0.0 — better15.0
Further details — not scored
Size20 MB112 MB
Age rating4+12+
DeveloperN2 Holding Corporation赞美 陈

Customer experience

N2 Studios

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

StressTracker

All ratings438 ratings
Positive92.9%
Neutral2.7%
Negative4.3%
Written reviews69 reviews
Positive75.4%
Neutral7.2%
Negative17.4%

Bugs and requests

N2 Studios

Not enough reviews yet to summarise bugs or requests.

StressTracker

Reported bugs

10 issues
  • App not working with Apple Series 3
  • Promotional price not applied
  • Data missing after upgrade
  • Feedback submission failed
  • Cannot contact customer service
Show 5 more
  • Membership not synced across devices
  • Inconsistent data between phone and watch
  • Questions switch between English and Chinese
  • Pop-up boxes in foreign languages
  • Paid version lost after update

Requested features

15 requests
  • Real-time updates
  • Increased frequency of readings/customizable frequency
  • Ability to manually trigger HRV
  • Improved notifications for high stress
  • Dark mode option
Show 10 more
  • Free trial for premium features
  • Ability to change language manually
  • Add female health features (e.g., period tracking)
  • Add water reminder function
  • Ability to change themes on Apple Watch directly
  • More frequent testing
  • Add a text素材库 for pressure status with corresponding watch themes
  • Display specific step count, sleep quality, and sun exposure time on watch face
  • Allow users to customize the frequency of HRV measurement
  • Add a feature to clear private messages with one click

In-app purchases

None

N2 Studios

No in-app purchases

9 purchases

StressTracker

Subscriptions6
  • Weekly Pro3 Days trial$4.997 Days
  • Weekly Pro$4.997 Days
  • Monthly Pro$14.991 Month
Show 3 more
  • Annual$29.991 Year
  • Quarter VIP$34.993 Months
  • Annual Pro$39.991 Year
One-time3
  • VIP Member2 variants$22.99
  • Lifetime Pro$99.99
  • 终身会员VIP$99.99

Questions

Is N2 Studios free?
N2 Studios is free to download, with no in-app purchases.
Is StressTracker free?
StressTracker is free to download, with in-app purchases available.
Which has better reviews, N2 Studios or StressTracker?
StressTracker is rated higher. N2 Studios averages 3.8 out of 5 from 5 ratings, while StressTracker averages 4.7 from 444 ratings.
Do N2 Studios or StressTracker have ads?
Neither N2 Studios nor StressTracker shows ads.
Which is updated more often, N2 Studios or StressTracker?
N2 Studios ships an update every 15 months, and StressTracker every 2 weeks. Most recently, N2 Studios was updated on October 24, 2026 and StressTracker on October 25, 2026.

Other comparisons