IQAir AirVisual | Air Quality

Review by eFreeware

IQAir AirVisual is a free air quality app from IQAir AG, published in the Weather category and drawing on the company's own monitoring network alongside government stations. It reports pollution, pollen, wildfire activity and weather for a very large set of locations. The main reason to consider it is the breadth of that coverage: over 500,000 locations across more than 100 countries, with a 4.7 average from 342,043 ratings and more than five million installs behind it.

That scale is the pitch. Rather than tracking a handful of major cities, the app aims to give a reading wherever you happen to be, and to explain what that reading means for your lungs. The developer describes it as the most trusted and reliable source of this kind of information, a claim worth weighing against the fact that the underlying numbers come from a mix of official stations and the company's own sensors.

I'd approach it as a planning tool rather than a curiosity. The question it answers is whether today, tomorrow or next weekend is a good time to be outside, and whether the air in a given place is likely to bother you.

Pollution numbers translated into something you can act on

The core of the app is pollutant data. It reports live readings for six pollutants, including carbon monoxide, sulphur dioxide, nitrogen dioxide, ozone, PM10 and PM2.5, and shows them next to an air quality index that is meant to be readable without a chemistry background. You can follow how those figures move over time for places you care about, with 48-hour historical graphs and daily averages stretching back a month.

What appeals to me is the attempt to explain rather than just display. The app includes health recommendations tied to the current readings, and separate information aimed at sensitive groups, including people with asthma and other respiratory or pulmonary conditions. There are also educational resources that cover what PM2.5 is and how to live with polluted air if you have a lung condition.

For anyone who has ever stared at a raw concentration figure and wondered whether it mattered, that framing is the useful part. The numbers are the evidence; the recommendations are the point.

Forecasts, pollen and wildfire tracking

Forecasting is where the app becomes a planning tool rather than a dashboard. It offers a seven-day air pollution and weather forecast, which the developer presents as a way to schedule outdoor activity a full week ahead, along with wind direction and speed so you can see how the wind is likely to move pollution around. Current conditions, temperature and humidity are all shown.

Pollen gets its own treatment. Tree, weed and grass counts are available for your favorite places, with a three-day forecast, which is the kind of thing that decides whether a run or a garden afternoon is bearable during allergy season.

Wildfires have a dedicated layer. The app tracks wildfire and smoke events worldwide, with alerts, an interactive map, historical data, forecasts and news updates. For anyone living in a region where smoke season has become a fixture, having that in the same place as the air readings saves a lot of cross-checking.

Maps, rankings and the view from above

The app includes both a conventional 2D world map of real-time pollution indexes and a 3D model the developer calls AirVisual Earth, which renders global air quality as a heatmapped globe. The 3D view is the more distinctive of the two, and while it is not something you would consult before a jog, it does make regional patterns easier to grasp than a list of city figures.

There is also a live city ranking based on PM2.5 concentrations, covering more than 100 locations, which sorts the best and worst air among them. It is the sort of feature that invites browsing, and it can be genuinely informative if you are comparing places to live, work or travel.

Recent updates have made these views easier to pass on. You can share a city or station page, or the Live Major Cities Ranking, as a formatted image, and contributors now collect badges on their profiles for milestones they reach.

If you own IQAir hardware, the app does more

The app connects to IQAir's own devices. It syncs with AirVisual Pro and AirVisual Outdoor monitors to show readings, offer recommendations and adjust monitor settings, which turns the app into the display for hardware you already own. It also controls Atem X and HealthPro series air purifiers remotely, with live and historical data, comparisons between devices, filter replacement alerts and scheduled on and off times.

Recent additions in this area include step-by-step filter replacement guidance for the Atem Earth and Atem Eco, and a monthly email report for people running multiple devices. If you have several purifiers in a house, that reporting is a sensible way to keep track of them without checking each one.

None of this is required to use the app. It is simply the part that rewards being inside IQAir's ecosystem rather than outside it.

What using it asks of you

The app is free, which is unusual for something with this much data behind it. The trade-off is not financial but structural: the readings depend on the monitoring network, a mix of government stations and the company's own sensors, so the quality of what you see in a given place rests on what is measuring there.

There is also a learning curve in the subject matter itself. Six pollutants, an index, historical graphs, wind effects and pollen counts add up to a fair amount of information, and the app's own educational material exists precisely because PM2.5 and its relatives are not self-explanatory. Someone who wants a single number and nothing else will find more here than they need.

The hardware features only apply if you own IQAir monitors or purifiers, and the contributor badges and sharing tools are extras rather than reasons to install. I'd treat the app as a free reference that happens to have a control panel attached for people who own the matching equipment.

Best suited to lungs that notice the air

The developer recommends the app for sensitive people, singles out families, and describes it as useful for athletes, runners, cyclists and other outdoor sports. That grouping makes sense. If you have asthma, allergies or another respiratory condition, the combination of current readings, forecasts and health guidance addresses exactly the decisions you make each morning.

It also fits households that plan around air quality, whether that means timing a child's soccer practice, deciding when to open the windows or keeping an eye on smoke from a distant fire. Runners and cyclists get the most from the forecast and wind data, since both affect how a route will feel hours from now.

If you already own an AirVisual monitor or an IQAir purifier, the app is the natural companion to it.

A free reference worth keeping on your phone

IQAir AirVisual earns a place on the home screen for anyone whose day is affected by what they breathe. The coverage is the strongest argument: hundreds of thousands of locations, six pollutants, pollen, wildfire tracking and week-long forecasts, all in one free app. For people with asthma or allergies, the sensitive-group guidance and educational material make the raw figures usable rather than intimidating.

The reservations are modest and mostly about fit. The data is only as good as the monitoring near you, the subject matter takes some getting used to, and the purifier and monitor controls matter only if you own that hardware. None of that undercuts the core purpose.

If you check the air before heading out, or you want a single place to watch pollution, pollen and smoke, this is a sensible install. If you are simply curious about the air in your city once in a while, it will still answer that question well.

What's new in version 7.4.7-1.1

Contributor badges: contributors now earn badges on their profiles that reflect the milestones they have reached. Shareable views: tap Share or screenshot a city/station page or the Live Major Cities Ranking to get an elegant image ready to post on social media. Devices: step-by-step Atem Earth / Atem Eco filter replacement, and a monthly email report for multiple devices. Bug fixes and performance improvements.