Your Stressy
by Ervo Labs
- Health & Fitness
- Paid
- Rating
- 0.0
- 0 ratings · North Macedonia storefront
- Last update
- Oct 21, 2026
- Version 1.0.2
- Size
- 17 MB
- Category
- Health & Fitness
- Tracked since
- Oct 22, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
Stressy turns what your Apple Watch already measures into one number: your reserve, from 0 to 100%.
Sleep fills it. Stress drains it. Calm slows it down. Glance at your wrist or your iPhone and you know how much you have left today.
YOUR MORNING STARTS WITH YOUR NIGHT
Deep sleep refills your reserve fastest. Stressy reads how your heart and HRV recovered overnight against your own usual, so a short or restless night starts you lower and a good one starts you high.
THROUGH THE DAY
Every five minutes, your heart is compared with your own calm. Stress drains the reserve in proportion to how stressed you are, calm slows the drain, and mindful minutes recharge it. Workouts and walks count as effort, never as stress.
SEE EXACTLY WHY
Today shows your whole day in one curve, your stress every five minutes, every activity with what it cost or gave back, and Behind the number: where yesterday ended, last night's recovery, and where your reserve went since you woke up.
LOOK AHEAD
- Readiness: whether today suits hard training, from your reserve, recovery, sleep and recent training. Plan a workout and see tomorrow's wake-up with and without it.
- Bedtime coach: the latest bedtime that still wakes you at 100, 90 or 80%, on a Liquid Glass dial.
ON YOUR WRIST AND EVERY SCREEN
The living tank on Apple Watch, complications and the Smart Stack, plus widgets for your Home Screen and Lock Screen, including today's stress in detail, as bars or as a flowing line.
DESIGNED FOR iOS 26 AND LATER
A living liquid tank, glass numbers that hold their own liquid, and Liquid Glass throughout. Light and dark appearance, Dynamic Type, VoiceOver and Reduce Motion.
PRIVATE BY DESIGN
No account. No servers. No analytics. No ads. Your health data is read on your iPhone and Apple Watch and never leaves them. One price, no subscription.
WHAT YOU NEED
An iPhone and an Apple Watch. Stressy reads sleep, heart rate, heart rate variability, resting heart rate, workouts, steps and mindful minutes from Apple Health, plus your age and sex for your heart rate zones. Wear your watch to sleep for the best results; your personal baseline settles in within about a week.
Stressy is a wellness app, not a medical device. Your reserve is an estimate to help you notice how sleep, stress and rest shape your day.
What’s new
Release notes for the latest version, as written by the developer.
Stressy now runs on iOS 26 and watchOS 26, so even more iPhones and Apple Watches can show your reserve. Background updates also stay smooth on every version.
Rank history
Daily position in the Canada charts. #1 is at the top.
- Best rank
- #28
- Current rank
- #28
- Days charting
- 1 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
87/100
Not flagged as small & simple
- Developer size70% · 25
Developer: 2 apps on the charts
- Audience size– · 20
No data, weight redistributed
- App size100% · 10
Size: 17 MB
- Price model100% · 15
Price model: paid
- Demand proof90% · 30
Best rank #1, 7 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 1.0.2LatestReleased Oct 21, 2026