Blood Oxygen App- Watch
by 199 Developments Private Limited
- Medical
- Free
- Rating
- 4.3
- 697 ratings
- Top 58%among 273 Medical apps
- Last update
- Oct 21, 2026
- Version 1.6.0
- Size
- 55 MB
- Category
- Medical
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
$21K/ month
Monthly gross store revenue (USD)
Where this falls on the revenue bands
- Likely range
- $3K–180K
- $10K–50K
- Confidence
- Low confidence
- Chart day Oct 25, 2026
- From Medical grossing #90
Unverified model estimate. Neither Apple nor the developer has published this number, and the real figure can be several times higher or lower. Low confidence: the real figure can be a band higher or lower.
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.
Take control of your health with the Blood Oxygen App:-
Effortlessly track and manage your vital health metrics, including blood oxygen levels, heart rate, HRV, and blood pressure, all in one intuitive app.
Key Features:
- O2 Log & Tracking: Monitor your blood oxygen levels (SpO2) with seamless auto-sync with your Apple Watch.
- Automatic Notifications: Receive instant alerts for low oxygen levels and other critical health metrics.
- Heart Rate & HRV Monitoring: Get accurate heart rate, heart rate variability(HRV) readings and analyze your HRV for deeper insights into your stress levels.
- Blood Pressure Logging: Easily log and track your blood pressure trends over time for a comprehensive view of your cardiovascular health.
- Breathing Exercises: Access 8 science-backed breathing techniques designed to help you relax, focus, and improve your overall well-being.
- Health Sync & Sharing: Sync your data with Apple Health for a holistic view of your health and share your reports in PDF.
The app seamlessly integrates with HealthKit to read and write SpO2, heart rate, HRV and blood pressure. Monitor your vital signs and centralize your health data for easy access and analysis.
Why Choose this app?
With a user-friendly interface and powerful features, this app empowers you to take charge of your health. Whether you’re an athlete, a wellness enthusiast, or managing a health
condition, our app is designed to meet your needs.
Download today and start your journey to better health.
Caution-
This app should not be used for medical advice or diagnosis. Please seek your Doctor’s advice for any medical advice or medical decisions.
Website: https://199dominator.wixsite.com/
Terms of use: https://199dominator.wixsite.com/website-4/legal
Privacy policy: https://199dominator.wixsite.com/website-4/legal
What’s new
Release notes for the latest version, as written by the developer.
Updates & enhancements
Rank history
Daily position in the US charts. #1 is at the top.
- Best rank
- #90
- Current rank
- #90
- Days charting
- 2 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
64/100
Not flagged as small & simple
- Developer size0% · 25
Developer: 7 apps on the charts
- Audience size80% · 20
Ratings: 697
- App size60% · 10
Size: 55 MB
- Price model80% · 15
Price model: free with in-app purchases
- Demand proof100% · 30
Best rank #1, 32 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksGap check · UK
Is this US chart app missing in UK?
It showed up on a UK chart in the last 30 days, so it is not a gap.
Store not checked yet
This is a candidate, not a verdict. Charts show at most 100 apps, so not charting does not mean no demand. Check the UK store before you decide.
See all gapsVersion history
- 1.6.0LatestReleased Oct 21, 2026
- 1.5.7Released Oct 2, 2026