Taiwan Air Downloads & RevenueTaiwan Air: AQI & PM2.5 · App Store
Taiwan Air: AQI & PM2.5 is #189 in Weather Free in India and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperKF PUN
CategoryWeather
PriceFree
Released
Rating★ 4.7 (47)
Version3.1.5
Age rating4+
First seen by us
13 Oct 2026
13 Oct 2026Installs (est.)500k+ worldwide
Taiwan Air: AQI & PM2.5 update history & changes
Last change · 6 events since 19 Sep 2017Full timeline ↓📦Updated to version 3.1.3📦Updated to version 3.1.0🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 6 events
- 📦Taiwan Air: AQI & PM2.5 updated to version 3.1.3iPhone Duo support, a clearer station-cam history, richer favourites and alerts, and an in-app business partner form.
IPHONE DUO
On the unfolded iPhone Duo, Favourites and the station list sit side by side with the map. Fold and unfold keep your place.
STATION WEBCAMS
Where a station has a camera, scrub the last 24 hours of stills on the station screen.
FAVOURITES AND ALERTS
Favourite rows and alert setup share a clearer layout, so thresholds and quiet hours are easier to manage.
HELP AND PARTNERSHIPS
Help pages follow your language more closely. Interested in working with us? Send a business partner enquiry from Help — it goes securely to our team (alongside Feedback / Contact us).
As always, air quality data comes from Taiwan's Ministry of Environment. Questions? Use Feedback in the app.… more - ✏️Taiwan Air: AQI & PM2.5: devices changed+ Watch
- 📦Taiwan Air: AQI & PM2.5 updated to version 3.1.0Home Screen and Lock Screen widgets — current AQI at your nearest or pinned station, at a glance.
- 🆕Taiwan Air: AQI & PM2.5 first spotted by AppInsiderUnited States (found via search)
- 📦Taiwan Air: AQI & PM2.5 version 3.0.0A redesigned station screen that tells you, in one line, whether the air is getting better or worse.
24-HOUR AIR QUALITY TREND
Open any station and see its last 24 hours of AQI, colour-coded hour by hour, with a plain-language verdict above the chart: improving, getting worse, or holding steady. The day's low, high and average sit underneath. The verdict compares averages rather than single readings, so one bad hour doesn't flip the answer.
A NEW STATION SCREEN
Station name, township, county and air quality zone now sit together in one header. All six pollutants are listed at once — no more switching between them one at a time. Wind, address, coordinates and health advice each have their own place, and every reading shows how many hours old it is.
BETTER SEARCH
Stations are grouped by air quality zone and ordered roughly north to south, and you can now search by township or county name instead of only by station name.
FASTER AND MORE STABLE
Rebuilt with the latest tooling, with updated maps and components throughout, plus a range of stability and performance fixes.
Questions or suggestions? Write to [email protected] — we read every one.… more - 🆕Taiwan Air: AQI & PM2.5 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
4.7 ★
47 ratings
Measured
Best rank now
#189
Weather FreeMeasured
Taiwan Air: AQI & PM2.5 on the App Store
App details
App ID
1286516443
Publisher
KF PUN
On the store since
Sep 2017
9 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad · Watch
Universal purchase
Content rating
4+
Languages
2
EN ZH
Size
42 MB
Also listed in
Travel
Taiwan Air: AQI & PM2.5 downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Taiwan Air: AQI & PM2.5's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| India | WeatherFree | #189 |
Apps near Taiwan Air: AQI & PM2.5 on the chart
Weather Free, around #189.
Ratings
App Store, worldwide.
Rating
4.7 ★
47 ratings
Measured
Ratings
47
Measured
About Taiwan Air: AQI & PM2.5
Taiwan Air shows you the air you are actually breathing, right now, measured by the government monitoring stations across Taiwan.
IS IT GETTING BETTER OR WORSE?
Every station screen answers the question you actually have. A 24-hour AQI chart, colour-coded hour by hour, with a one-line verdict above it: improving, getting worse, or steady. The day's low, high and average sit underneath. No chart-reading required.
A LIVE MAP OF EVERY STATION
• Every official monitoring station on one map, each pinned with its current reading and coloured by health band
• Switch the whole map between AQI, PM2.5, PM10, O3, CO, SO2 and NO2
• Wind mode turns every marker into an arrow — which way the pollution is blowing, and how hard
• The station nearest you stays on screen with its reading and the time it was measured
• Readings refresh automatically; the map reopens exactly where you left it
EVERY NUMBER, FOR EVERY STATION
• AQI plus all six pollutants: PM2.5, PM10, ozone, carbon monoxide, sulphur dioxide and nitrogen dioxide
• Wind direction and speed, in plain words
• Health guidance for the general public and for sensitive groups
• Station address, coordinates, station type and air-quality region
• Exactly when the reading was published, and how long ago that was
ALERTS THAT RESPECT YOUR SLEEP
• Get a push notification when AQI at a station you care about rises above your threshold
• Or when it drops below one — so you know when it is safe to open the windows again
• Set a Do Not Disturb window and nothing arrives overnight
BUILT FOR EVERY DAY
• Save home, work and school as favourites and check them all at a glance
• Search every station by name, town or county, grouped by air-quality region
• Available in English and 繁體中文
• A single in-app purchase removes every ad, permanently
WHY IT MATTERS
Air pollution is not only a respiratory problem. It raises the risk of cardiovascular disease, stroke and other chronic illness, and in 2013 the International Agency for Research on Cancer classified outdoor air pollution as a Group 1 carcinogen. Children and older adults are affected most. Thirty seconds before you leave the house tells you whether to take the mask, or to run the purifier instead of opening the window.
WHERE THE DATA COMES FROM
Every reading is open data published by Taiwan's Ministry of Environment air quality monitoring network. We display it; we do not adjust it.
Questions, problems or ideas? Write to [email protected] — we read everything.
IS IT GETTING BETTER OR WORSE?
Every station screen answers the question you actually have. A 24-hour AQI chart, colour-coded hour by hour, with a one-line verdict above it: improving, getting worse, or steady. The day's low, high and average sit underneath. No chart-reading required.
A LIVE MAP OF EVERY STATION
• Every official monitoring station on one map, each pinned with its current reading and coloured by health band
• Switch the whole map between AQI, PM2.5, PM10, O3, CO, SO2 and NO2
• Wind mode turns every marker into an arrow — which way the pollution is blowing, and how hard
• The station nearest you stays on screen with its reading and the time it was measured
• Readings refresh automatically; the map reopens exactly where you left it
EVERY NUMBER, FOR EVERY STATION
• AQI plus all six pollutants: PM2.5, PM10, ozone, carbon monoxide, sulphur dioxide and nitrogen dioxide
• Wind direction and speed, in plain words
• Health guidance for the general public and for sensitive groups
• Station address, coordinates, station type and air-quality region
• Exactly when the reading was published, and how long ago that was
ALERTS THAT RESPECT YOUR SLEEP
• Get a push notification when AQI at a station you care about rises above your threshold
• Or when it drops below one — so you know when it is safe to open the windows again
• Set a Do Not Disturb window and nothing arrives overnight
BUILT FOR EVERY DAY
• Save home, work and school as favourites and check them all at a glance
• Search every station by name, town or county, grouped by air-quality region
• Available in English and 繁體中文
• A single in-app purchase removes every ad, permanently
WHY IT MATTERS
Air pollution is not only a respiratory problem. It raises the risk of cardiovascular disease, stroke and other chronic illness, and in 2013 the International Agency for Research on Cancer classified outdoor air pollution as a Group 1 carcinogen. Children and older adults are affected most. Thirty seconds before you leave the house tells you whether to take the mask, or to run the purifier instead of opening the window.
WHERE THE DATA COMES FROM
Every reading is open data published by Taiwan's Ministry of Environment air quality monitoring network. We display it; we do not adjust it.
Questions, problems or ideas? Write to [email protected] — we read everything.
Latest updates
3.1.5
Local weather on every station page, a shorter and friendlier welcome, and your choice of light or dark.
WEATHER ON THE STATION PAGE
Each station now shows the weather next to its air quality: temperature, humidity, rain and wind from the nearest Central Weather Administration station, plus the county forecast for the next 36 hours with temperatures and chance of rain.
A NEW WELCOME
Setup is now five short animated steps. Find your closest station or pick another from the list, add it to your favourites with alerts in one tap, set Do Not Disturb hours as soon as notifications are on, and see what widgets, Siri and the forecast can do. You can run it again any time from Help.
LIGHT OR DARK, YOUR CHOICE
A new Appearance setting in Help keeps the app light or dark whatever iOS is set to, or follows the system as before. The map switches with it.
Questions or suggestions? Write to [email protected] — we read every one.
3.1.3
iPhone Duo support, a clearer station-cam history, richer favourites and alerts, and an in-app business partner form.
IPHONE DUO
On the unfolded iPhone Duo, Favourites and the station list sit side by side with the map. Fold and unfold keep your place.
STATION WEBCAMS
Where a station has a camera, scrub the last 24 hours of stills on the station screen.
FAVOURITES AND ALERTS
Favourite rows and alert setup share a clearer layout, so thresholds and quiet hours are easier to manage.
HELP AND PARTNERSHIPS
Help pages follow your language more closely. Interested in working with us? Send a business partner enquiry from Help — it goes securely to our team (alongside Feedback / Contact us).
As always, air quality data comes from Taiwan's Ministry of Environment. Questions? Use Feedback in the app.
3.1.0
Home Screen and Lock Screen widgets — current AQI at your nearest or pinned station, at a glance.
Store changes
What Taiwan Air: AQI & PM2.5 changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got bigger
35 MB → 42 MB (+21%)
Devices changed
+ Watch
