SG Haze

Breathe easy in Singapore. Real-time PM2.5 haze map with smart interpolation, hourly alerts, and 6 languages — powered by official NEA data. Know your air, stay safe.

SGHaze — Real-Time PM2.5 Haze Monitor for Singapore

Stay informed about Singapore's air quality with SGHaze, the most detailed real-time PM2.5 haze monitor built for everyone who calls Singapore home.

REAL-TIME DATA FROM OFFICIAL SOURCES

SGHaze pulls live PM2.5 readings directly from the National Environment Agency (NEA) through Singapore's official open data API. No third-party guesswork — just reliable, government-sourced air quality data updated every hour across all monitoring regions.

SMART INTERACTIVE MAP

See air quality at a glance with our color-coded map overlay. SGHaze uses Inverse Distance Weighting (IDW) interpolation to estimate PM2.5 levels between official monitoring stations, giving you a smooth, detailed picture of haze conditions across the island.

• Zoom out for a full Singapore overview on a 6×7 grid
• Zoom in for hyperlocal detail on a denser 12×14 grid
• Tap any point to see the estimated PM2.5 value and health category
• Search by region name to jump straight to your area

UNDERSTAND AT A GLANCE

Every reading is color-coded to help you make quick decisions:

• Green: Good (0–55) — Safe for outdoor activities
• Orange: Moderate (56–150) — Caution advised
• Deep Orange: Unhealthy (151–250) — Limit outdoor exposure
• Red: Hazardous (251+) — Stay indoors

HOURLY AIR QUALITY ALERTS

Never be caught off guard. Premium users receive automatic background notifications when PM2.5 levels reach Unhealthy or Hazardous levels in any region — so you can protect yourself and your family before stepping outside.

BUILT FOR SINGAPORE'S DIVERSITY

SGHaze speaks your language. Choose from 6 languages:

• English
• Mandarin
• Bahasa Melayu
• Tamil
• Hokkien
• Cantonese

SHARE WITH THOSE YOU CARE ABOUT

Quickly share current PM2.5 readings with family and friends via WhatsApp or any messaging app. One tap sends a clear summary of conditions across all regions.

EMERGENCY CONTACTS AT YOUR FINGERTIPS

Access critical emergency numbers directly from the app — SCDF, Police, NEA Hotline, and hospital emergency lines — because haze emergencies don't wait.

PREMIUM FEATURES

Subscribe at operation cost price. A single subscription purchase unlocks:

• Full interactive map with zoom and search
• Localized Map (upon app restart)
• Denser data grid for hyperlocal readings
• Hourly background air quality alerts
• Ad-free experience
• Support continued development

PRIVACY-FIRST

SGHaze stores your preferences locally on your device. No accounts, no personal data collection, no tracking. Payments are handled entirely through Apple — we never see your payment information.

Download SGHaze and breathe easier knowing you always have Singapore's air quality at your fingertips.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/