SG Real PSI Downloads & RevenueSG Real PSI: Haze PSI · App Store
Not in any tracked top chart right now.
Updated 3 Nov 2026 · rankings refresh through the day
DeveloperOUS Group Pte Ltd (Originally US)
CategoryWeather
PriceFree
Released
Rating★ 0.0 (0)
Version1.0
Age rating4+
First seen by us
29 Sep 2026
29 Sep 2026SG Real PSI: Haze PSI update history & changes
Last change · 7 events since 28 Mar 2020Full timeline ↓📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 6 events in the last 12 months
- 📈SG Real PSI: Haze PSI entered the top 100Top Free · Weather · ID
- 📈SG Real PSI: Haze PSI charting in a new countryIndonesia
- 📈SG Real PSI: Haze PSI entered the top 100Top Free · Weather · KR
- 📈SG Real PSI: Haze PSI charting in a new countrySouth Korea
- 🆕SG Real PSI: Haze PSI first spotted by AppInsider#83 in Top Free · Weather · Japan
- 🆕SG Real PSI: Haze PSI released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
SG Real PSI: Haze PSI on the App Store
App details
App ID
1503441405
Publisher
OUS Group Pte Ltd
On the store since
Mar 2020
6 years on the store
Minimum OS
iOS 8.0+
iPhone 4s and later
Devices
iPhone · iPad · Watch
Content rating
4+
Languages
1
EN
Size
64 MB
Also listed in
Utilities
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About SG Real PSI: Haze PSI
Got haze in Singapore? Want to check PSI, pollution and PM2.5 readings around Singapore? Use SG Real PSI app!
NEA's PSI reading is based on a 24-hour average. While it is a good measure of exposure, it tends to dampen the impact of sharp drops or increase in PSI readings in an hour.
We have created what we think is a right implementation of NEA's official PSI formula on haze.gov.sg to deduce the actual, hourly PSI measurements from hourly PM2.5 readings.
Our hourly PSI figures are calculated using NEA's hourly reading. Unlike others, we don't use our own sensors which may or may not be calibrated correctly or accurate.
Important Disclaimer: We are not experts on air pollution. We create this app because we are curious about what the actual hourly PSI looks like. Our figures may be wrong. Please use at your own risk.
NEA's PSI reading is based on a 24-hour average. While it is a good measure of exposure, it tends to dampen the impact of sharp drops or increase in PSI readings in an hour.
We have created what we think is a right implementation of NEA's official PSI formula on haze.gov.sg to deduce the actual, hourly PSI measurements from hourly PM2.5 readings.
Our hourly PSI figures are calculated using NEA's hourly reading. Unlike others, we don't use our own sensors which may or may not be calibrated correctly or accurate.
Important Disclaimer: We are not experts on air pollution. We create this app because we are curious about what the actual hourly PSI looks like. Our figures may be wrong. Please use at your own risk.
Latest updates
1.0
