BreathShield: AQI & Pollen
Asthma alerts & health risk
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
BreathShield warns you BEFORE you get sick.
Wake up every morning to a personalized health risk score that combines your overnight Apple Watch biometrics with real-time air quality and pollen data. All processing happens entirely on your device.
HOW IT WORKS
- Automatically reads your overnight vitals: respiratory rate, SpO2, HRV, wrist temperature, and sleep stages
- Fetches hyperlocal PM2.5, ozone, pollen, and UV index from nearby monitoring stations
- Calculates your personal risk score (0-100) using a weighted bio-environmental algorithm
- Sends smart morning alerts when your risk is elevated
100% PRIVACY - ZERO COMPROMISE
- All data processed on-device. Nothing uploaded.
- No account, no login, no surveys. Works instantly.
- No ads, no tracking, no data selling. Ever.
- Your health data never leaves your iPhone.
FEATURES
- Real-time risk gauge with biometric and environmental fusion
- Personalized 90-day adaptive baseline that learns your body
- 14-day trend tracking with anomaly detection
- Home Screen and Lock Screen widgets
- Siri shortcuts: "Hey Siri, what's my risk score?"
- Background auto-refresh every morning at 6:30 AM
- Smart push notifications for critical air quality events
BUILT FOR PEOPLE WHO CARE ABOUT BREATHING
Whether you manage asthma, seasonal allergies, COPD, or simply want to protect your lungs from wildfire smoke and urban pollution, BreathShield gives you the data to act before symptoms hit.
BREATHSHIELD PRO
- Advanced bio-environmental correlation analysis
- Extended 14-day trends with personal insights
- Unlimited push alerts and critical warnings
- Lock Screen widget for at-a-glance safety
DATA SOURCES
- OpenAQ: Real-time PM2.5, PM10, O3, NO2 from 50,000+ stations worldwide
- Google Pollen API: Tree, grass, and weed pollen forecasts
- Apple WeatherKit: UV index, humidity, wind speed
- Apple HealthKit: Overnight biometrics from Apple Watch
Designed for Apple Watch Series 6 and later. Works without Apple Watch using environmental data only.
DISCLAIMER: BreathShield is an informational wellness tool only and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions. This application is not a medical device.
Terms and Privacy: https://www.gamersimulation.com/privacy-policy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 1.1.0
Smarter Risk Scoring
Redesigned the risk algorithm with clinical guardrails to reduce false alarms during your first days of use
Your personal baseline now requires a minimum calibration period before triggering biometric alerts
Either environmental threats or biometric anomalies can now independently escalate your risk level — a hazardous air quality day will no longer be understated just because your vitals are normal
Improved Accuracy
Fixed an issue where the same health reading could be counted multiple times per day, which caused baseline drift and inflated anomaly scores
Risk history now correctly stores one record per day instead of duplicating on every app refresh
Environmental and biometric scores are now normalized only over available data sources — missing sensors no longer silently lower your score
Performance
API calls are now cached for 15 minutes to reduce battery usage and network traffic
Pull down on the dashboard to force a fresh data refresh at any time
Stability
Fixed a potential freeze on launch when verifying subscription status
Onboarding now properly requests Health and Location permissions before you reach the dashboard
Added StoreKit testing configuration for improved purchase reliability
Other
Added a medical disclaimer during onboarding to clarify that BreathShield is a wellness tool, not a medical device
The dashboard now displays a note when data sources are limited or your baseline is still calibrating
Fixed device capability declaration for modern hardware
The developer, Mustafa Kandemir, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mustafa Kandemir
- Size
- 2.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Lifetime $79.99
- Pro Yearly $29.99
- Pro Monthly $2.99
- Copyright
- © Gamer Simulation 2026
