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Air Quality | AirVisual

Air Quality | AirVisual

IQAir AG

AirVisual, the reliable and trusted global air quality report & forecast PM2.5

4.7 Ratings 254K+ Reviews 5M+ Downloads

Ratings & Reviews

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  • img Community
    Pollen is not the only external factor that can trigger asthma. Often, pollution will pose a much bigger threat. If you live in a city of 3,000,000 people, with air of dubious quality, you will want to receive regular alerts so that you can always plan your outings accordingly.
    img by Antonio
    1 year ago
  • img Community
    By monitoring the AQI, you can determine the air quality of any city which is calculated based on various factors such as levels of carbon monoxide, dust particles, etc. For example, if the AQI exceeds 150, you will be notified to take the necessary precautions and provide personalized recommendations.
    img by Umar
    1 year ago
  • img Expert
    1. Have a reliable and trusted air quality report for over 10,000 cities in over 80 countries right in your pocket
    2. No matter where you are you can have a real-time airy quality report that measures for 6 key pollutants
    3. Learn about the air quality around you with 7-day air pollution and weather forecasts to plan your week

    Reviewed by Chris on March 27, 2018

  • May 22, 2021

    By Trish Roberts
    Extremely helpful when in South Korea! The very few times I did not check the air quality when the air was above 100 and 200, I paid for it by having either a migraine the next day for one full day, and/or having a very sore throat and coughing for almost a week. Prior to Covid, during the horrible air quality day's, I either always wore a mask to protect myself, or I stayed inside the entire day delaying any miscellaneous trips.
  • Did my research, get it Sep 5, 2016

    By Grindelli
    I have lived in China for 3 years and have a two-year old boy. Once he was born I became more interested in what all the AQI apps actually did and started researching them. AirVisual is by far the best one I have come across (having used 10+ different apps). Not only can you choose to use the US index (which I would highly recommend) you also can see which pollutants are contaminating the atmosphere at any given time. I also have a laser egg (also highly recommended) which is a portable particulate counter and the readings on my mobile device and the closest monitoring station on the app are always within +/-20 meaning they are not contradicting each other. On other apps there would often times be a 50 point+ difference between what my particulate counter read and the other random apps I was using. Also, do note that some apps do, like airvisual, have the different pollutants listed and their levels but airvisual is the only app I have found that combines that with the ability to choose the US AQI standard. My go-to app when it comes to air pollution.
  • May 8, 2021

    By J
    medium widget is not showing air quality properly when the numbers are in the double digits. it will only show the first digit. for example, if the air quality is 68 it will only show the 6. I have the latest version. and I've already mailed the developer. update. still doesn't work and now the widgets are twice as big with no increased information. also, the choices for sizes of widget are less than before. there used to be larger choices that would show upcoming weather but those are now gone.
  • Your AQI in an app Nov 8, 2019

    By Kido@PDX
    This free app can help you with information and forecasting of the air quality in your area. Since the 1970’s I’ve been personally interested in my home environment mainly because 3 of my family members, my husband & 2 children have hay fever in the Spring. We installed an electronic air filter in our furnace and air conditioning system which seemed to help immensely. Fat forward another 30+ years when we discovered the AirVisual app & their small device that could monitor our indoor air quality. Yes, using an AirVisual device is an easy way to monitor and improve your own air quality in your home. I discovered that NOT opening the windows to bring in a little fresh air was bad for us. Our carbon dioxide CO2 levels were getting in a higher range and causing headaches and lethargic behaviors. Being retired and at home most of the time, this became even more important to monitor our indoor AQI. Thank you AirVisual for providing the tools and information for a healthier lifestyle. 🥰
  • May 6, 2021

    By Owen Rae
    Informative. Helpful and Suits my requirements perfectly. Allowing me to go about my daily routine confidently in the knowledge of the Air Quality surrounding the places I frequent. That's all I need and this App so far has provided that assurance. !! I'm Happy. Thanks.
  • Current AQ features great, but forecast is a joke Sep 15, 2020

    By Veloscente
    The Good: Air Visual lets you set a local AQ station as default, and on launch, displays current AQI reading plus 48hrs of detailed history and a week of daily averages. At the bottom of the page, there is a map that lets you scan AQ readings at stations within a ~15mile radius. To get this AQ map, or any local AQ info, on Weather Underground website requires a half dozen clicks to toggle on PM2.5 filter, and WU does not offer any AQ history data, so this functionality makes AirVisual well worth the download. The Bad: I had high hopes the AIrVisual AQ forecast feature would help me plan outdoor activity by predicting windows of good air during California fire season. My hopes were unfounded: it is the worst “predictive” weather tool I have ever encountered! It would appear AirVisual’s forecast tool is based on the assumption that daytime pollution will simply dissipate overnight. With most of the West Coast on fire, the question is how much new smoke prevailing winds are bringing our way, and AirVisual’s forecast feature is clearly not built to gauge this, whether by visual smoke imaging or by other means.
  • Excellent for Air Quality Forecast and Safety Sep 12, 2020

    By Ms. Whose-it-to-ya
    This app continues to be very helpful for knowing the current AIR QUALITY in your location. Easy to use and read, great color coordinated layout to compare different areas air quality. It was very helpful for my family and I both during the 2017 Thomas Fire in California and today (September 2020) during this extremely difficult fire season across the West Coast. The app is able to consistently be updated and can show you hourly, daily, and weekly forecast and more. You can add many locations on the same page to compare. If you scroll down, it also shows you the PM level of pollutant in your area (worth learning about) and has guideline suggestions for your safety depending on the pollutant level in your area. I’m checking daily for forecast updates. Much appreciated and highly recommended. Thankful for this updated information.
  • May 22, 2021

    By Trish Roberts
    Extremely helpful when in South Korea! The very few times I did not check the air quality when the air was above 100 and 200, I paid for it by having either a migraine the next day for one full day, and/or having a very sore throat and coughing for almost a week. Prior to Covid, during the horrible air quality day's, I either always wore a mask to protect myself, or I stayed inside the entire day delaying any miscellaneous trips.
  • Did my research, get it Sep 5, 2016

    By Grindelli
    I have lived in China for 3 years and have a two-year old boy. Once he was born I became more interested in what all the AQI apps actually did and started researching them. AirVisual is by far the best one I have come across (having used 10+ different apps). Not only can you choose to use the US index (which I would highly recommend) you also can see which pollutants are contaminating the atmosphere at any given time. I also have a laser egg (also highly recommended) which is a portable particulate counter and the readings on my mobile device and the closest monitoring station on the app are always within +/-20 meaning they are not contradicting each other. On other apps there would often times be a 50 point+ difference between what my particulate counter read and the other random apps I was using. Also, do note that some apps do, like airvisual, have the different pollutants listed and their levels but airvisual is the only app I have found that combines that with the ability to choose the US AQI standard. My go-to app when it comes to air pollution.
  • May 8, 2021

    By J
    medium widget is not showing air quality properly when the numbers are in the double digits. it will only show the first digit. for example, if the air quality is 68 it will only show the 6. I have the latest version. and I've already mailed the developer. update. still doesn't work and now the widgets are twice as big with no increased information. also, the choices for sizes of widget are less than before. there used to be larger choices that would show upcoming weather but those are now gone.
  • Your AQI in an app Nov 8, 2019

    By Kido@PDX
    This free app can help you with information and forecasting of the air quality in your area. Since the 1970’s I’ve been personally interested in my home environment mainly because 3 of my family members, my husband & 2 children have hay fever in the Spring. We installed an electronic air filter in our furnace and air conditioning system which seemed to help immensely. Fat forward another 30+ years when we discovered the AirVisual app & their small device that could monitor our indoor air quality. Yes, using an AirVisual device is an easy way to monitor and improve your own air quality in your home. I discovered that NOT opening the windows to bring in a little fresh air was bad for us. Our carbon dioxide CO2 levels were getting in a higher range and causing headaches and lethargic behaviors. Being retired and at home most of the time, this became even more important to monitor our indoor AQI. Thank you AirVisual for providing the tools and information for a healthier lifestyle. 🥰
  • May 6, 2021

    By Owen Rae
    Informative. Helpful and Suits my requirements perfectly. Allowing me to go about my daily routine confidently in the knowledge of the Air Quality surrounding the places I frequent. That's all I need and this App so far has provided that assurance. !! I'm Happy. Thanks.
  • Current AQ features great, but forecast is a joke Sep 15, 2020

    By Veloscente
    The Good: Air Visual lets you set a local AQ station as default, and on launch, displays current AQI reading plus 48hrs of detailed history and a week of daily averages. At the bottom of the page, there is a map that lets you scan AQ readings at stations within a ~15mile radius. To get this AQ map, or any local AQ info, on Weather Underground website requires a half dozen clicks to toggle on PM2.5 filter, and WU does not offer any AQ history data, so this functionality makes AirVisual well worth the download. The Bad: I had high hopes the AIrVisual AQ forecast feature would help me plan outdoor activity by predicting windows of good air during California fire season. My hopes were unfounded: it is the worst “predictive” weather tool I have ever encountered! It would appear AirVisual’s forecast tool is based on the assumption that daytime pollution will simply dissipate overnight. With most of the West Coast on fire, the question is how much new smoke prevailing winds are bringing our way, and AirVisual’s forecast feature is clearly not built to gauge this, whether by visual smoke imaging or by other means.
  • Excellent for Air Quality Forecast and Safety Sep 12, 2020

    By Ms. Whose-it-to-ya
    This app continues to be very helpful for knowing the current AIR QUALITY in your location. Easy to use and read, great color coordinated layout to compare different areas air quality. It was very helpful for my family and I both during the 2017 Thomas Fire in California and today (September 2020) during this extremely difficult fire season across the West Coast. The app is able to consistently be updated and can show you hourly, daily, and weekly forecast and more. You can add many locations on the same page to compare. If you scroll down, it also shows you the PM level of pollutant in your area (worth learning about) and has guideline suggestions for your safety depending on the pollutant level in your area. I’m checking daily for forecast updates. Much appreciated and highly recommended. Thankful for this updated information.
  • May 12, 2021

    By Sandrine Bardot
    Being asthmatic this is a useful app. I'm rating 4 not 5 because the widget regularly stops working and needs to be reinstalled. Also, not many data points in my city and they sometines have significantly different AQ numbers - I'd love some qualitative info to understand the reason for these differences.
  • Very Helpful Sep 17, 2020

    By iRe-view
    This app has actually been super helpful during this horrendous California wildfire season. We have found ourselves checking the app several times a day and the information/numbers seem generally pretty accurate compared with our firsthand experience of air quality/smoke conditions. The information is presented in a clear and helpful format and everything usually works well. Two of the most helpful features have been the air quality projections for the coming hours and days, and the live smoke and wind-currents radar map. While we know the projected air quality numbers are not always accurate due to constantly changing wind and weather conditions, they can be very helpful in giving you some idea of how things are likely to be trending. They also seem to update frequently with the changing conditions, making the short term predictions generally pretty accurate, even if the longer term ones are not. In the air quality map section, be sure to tap on the small dark rectangle that says “Air Visual Earth” which brings up another map of the world that you can pinch-and-zoom-in to see a real time smoke and wind radar map. This app is much better than the other highly rated air quality app I tried. All in all, this app is excellent and very helpful.
  • May 1, 2021

    By Goo Gler
    Horizontal slider has a thin blue line which indicates which of the three days is in focus. There is no indicator to show which hour goes with the indicated day. For example, the blue line under Saturday does not change until 2:00pm Sunday.
  • May 16, 2021

    By Dave Johnson
    No use to me at all. I live in the UK's most polluted area, close to the infamous Walleys Quarry landfill site - apparently though the air is great! Neither is there any record whatsoever in your graph of last night's appalling stink which resulted in yet another colossal amount of emergency calls to the Environment Agency. A pointless, inaccurate app. Uninstalling.
  • Apr 26, 2021

    By ano nymo
    this ad obsessive [cr]app has always been maximally VPN-UNFRIENDLY. when 2nd class widget manages to update itself w/ an actual AQ read, WIDGET NEVER UPDATES AQ 'HISTORY' IN MAIN [CR]APP. next time widget fails to data refresh, it discards last widget AQ update for the last AQ history entry in main [cr]app. ALL AQ UPDATES, whether by widget or main [cr]app SHOULD ALWAYS BE SAVED LOCALLY TO MAIN [CR]APP AQ HISTORY. MAKE THIS [CR]APP *VPN FRIENDLY*, too. fixes long past due.
  • Forecast data is completely unreliable Aug 13, 2018

    By c0rlette
    While current local condition air quality seemed accurate, the forecast data, even just a few hours ahead, was completely wrong. I live in Oregon and we had horrible air quality last summer, in the unhealthy range repeatedly, even crossing into hazardous at times. With many wildfires burning across our region, we are all jumpy in fear of a repeat. For some reason, despite consistently good air this year, the app predicts unhealthy air 4 hours in the future every single day. During the first week I cancelled a number of recreational and outdoor activity plans based on these predictions. I am especially peeved about one of these cancellations, something that I really wanted to do and lost some reservation money. I followed the site for another week—same thing every day. I know air patterns and fire conditions can change rapidly but AirVisual was never correct. The forecast ability was the main draw for me so I deleted AirVisual and swapped it out for an app with a very simple design, just current AQ numbers in bubbles on a map, easy to navigate around a region.
  • May 31, 2021

    By Melody Concerto
    Seems not to work for my location properly and developers are unresponsive when locations are reported as being inaccurate.
  • Horribly inaccurate. Apr 30, 2017

    By Galia Stauffer
    I live in South Korea and have for a total of 5 years, spread out over the last decade in a 3 year stay and now 2 years into a 5 year stay, in that time the air quality here has gotten much much worse. I was recently diagnosed with asthma (something that is apparently becoming more common for people in Seoul) and have to check the air quality regularly. If it's above 100 aqi I have to wear a special filter mask to leave the house. I got this app to make it easier to check the AQI regularly, one of the big draws for this app is it notifies me if the AQI goes above 100, or it's supposed to. Yesterday it never dropped below 100 and I never got a notification (thankfully I'd had the thought to check online before leaving the house) and upon checking the app it said an AQI of 63 when it was really 163. If you're relying on this app for all your AQI information and live in a city with poor air quality such as Seoul you may be putting your health at risk by relying on this app.
  • May 31, 2021

    By Marc Plano-Lesay
    Sends notifications unrelated to the app use-case, fails to refresh data quite often, unreliable.
  • Terrible app with device Jul 10, 2019

    By MusicalFreedom
    If you have an air iq, which I just bought. This app is pretty terrible. It has HUGE gaps in the reporting. For example I have my device on all day. And the graph for “daily” report only shows info for 10am-2pm then a huge gap of no data, and then more reporting from 5pm-11pm, then a huge gap again between 11pm-2am. It’s completely random each day with times it will decide not to record info. The decide itself shows what happened over the last 24 hours fine. But the app shows these huge gaps which makes it useless since you can’t look back at history on the device itself beyond a day. So this problem with the app makes in unusable and also severely damaged the usability of the device too since you can’t access historical data beyond a day. This makes testing in a bad air home almost impossible to see if you are making any progress or not. For a $300 device, the app should work flawlessly with it.
  • May 29, 2021

    By lehyunsu
    Multiple nearby stations not updating for weeks. Had to resort to a large city station which is half as reliable for local forecasts.
  • I really want to have this app... Sep 15, 2018

    By Brachylagus
    I want to be able to monitor the air quality for the sake of my child (who has a chronic condition) to aid in deciding if we do outdoor or indoor activities. I really was hoping this app would work, but there are FAR too many times it will say it’s a green air quality day with little or no particulate concerns when in reality it’s an orange or red air day. For example today there is literally ash falling from the sky as a result of a near by wildfire....and the app says it’s a Green Day with only 11 US AQI. If I look it up on a trusted web site it says it’s a red air day with 191 AQI. Since I can physically see particles in the air and even indoors can only smell smoke, I’m sure you can understand which one is the accurate one. I’ve officially given up on this app as I obviously can’t trust it.
  • Excellent in theory, crashes constantly Sep 16, 2020

    By Bookbinder lad
    Every time you switch away from the app to write a text or answer a call or look at a different weather app, when you return to it, it crashes. Without this problem it’s excellent, but with it, the app is very frustrating, because obviously pollution levels are something you check throughout the day. Update: I wait to update to the current year’s version of iOS right up until the new iOS is released. Tonight after upgrading from 12.x to 13.7, I hoped the crashes on IQAir would improve. Instead they are much worse: the app is unusable now. You see an initial reading and any interaction at all crashes the app, as does no interaction but waiting about 5 seconds after opening.
  • img Community
    Pollen is not the only external factor that can trigger asthma. Often, pollution will pose a much bigger threat. If you live in a city of 3,000,000 people, with air of dubious quality, you will want to receive regular alerts so that you can always plan your outings accordingly.
    img by Antonio
    1 year ago
  • img Community
    By monitoring the AQI, you can determine the air quality of any city which is calculated based on various factors such as levels of carbon monoxide, dust particles, etc. For example, if the AQI exceeds 150, you will be notified to take the necessary precautions and provide personalized recommendations.
    img by Umar
    1 year ago
  • img Expert
    1. Have a reliable and trusted air quality report for over 10,000 cities in over 80 countries right in your pocket
    2. No matter where you are you can have a real-time airy quality report that measures for 6 key pollutants
    3. Learn about the air quality around you with 7-day air pollution and weather forecasts to plan your week

    Reviewed by Chris on March 27, 2018

  • May 22, 2021

    By Trish Roberts
    Extremely helpful when in South Korea! The very few times I did not check the air quality when the air was above 100 and 200, I paid for it by having either a migraine the next day for one full day, and/or having a very sore throat and coughing for almost a week. Prior to Covid, during the horrible air quality day's, I either always wore a mask to protect myself, or I stayed inside the entire day delaying any miscellaneous trips.
  • Did my research, get it Sep 5, 2016

    By Grindelli
    I have lived in China for 3 years and have a two-year old boy. Once he was born I became more interested in what all the AQI apps actually did and started researching them. AirVisual is by far the best one I have come across (having used 10+ different apps). Not only can you choose to use the US index (which I would highly recommend) you also can see which pollutants are contaminating the atmosphere at any given time. I also have a laser egg (also highly recommended) which is a portable particulate counter and the readings on my mobile device and the closest monitoring station on the app are always within +/-20 meaning they are not contradicting each other. On other apps there would often times be a 50 point+ difference between what my particulate counter read and the other random apps I was using. Also, do note that some apps do, like airvisual, have the different pollutants listed and their levels but airvisual is the only app I have found that combines that with the ability to choose the US AQI standard. My go-to app when it comes to air pollution.
  • Your AQI in an app Nov 8, 2019

    By Kido@PDX
    This free app can help you with information and forecasting of the air quality in your area. Since the 1970’s I’ve been personally interested in my home environment mainly because 3 of my family members, my husband & 2 children have hay fever in the Spring. We installed an electronic air filter in our furnace and air conditioning system which seemed to help immensely. Fat forward another 30+ years when we discovered the AirVisual app & their small device that could monitor our indoor air quality. Yes, using an AirVisual device is an easy way to monitor and improve your own air quality in your home. I discovered that NOT opening the windows to bring in a little fresh air was bad for us. Our carbon dioxide CO2 levels were getting in a higher range and causing headaches and lethargic behaviors. Being retired and at home most of the time, this became even more important to monitor our indoor AQI. Thank you AirVisual for providing the tools and information for a healthier lifestyle. 🥰
  • May 6, 2021

    By Owen Rae
    Informative. Helpful and Suits my requirements perfectly. Allowing me to go about my daily routine confidently in the knowledge of the Air Quality surrounding the places I frequent. That's all I need and this App so far has provided that assurance. !! I'm Happy. Thanks.
  • Excellent for Air Quality Forecast and Safety Sep 12, 2020

    By Ms. Whose-it-to-ya
    This app continues to be very helpful for knowing the current AIR QUALITY in your location. Easy to use and read, great color coordinated layout to compare different areas air quality. It was very helpful for my family and I both during the 2017 Thomas Fire in California and today (September 2020) during this extremely difficult fire season across the West Coast. The app is able to consistently be updated and can show you hourly, daily, and weekly forecast and more. You can add many locations on the same page to compare. If you scroll down, it also shows you the PM level of pollutant in your area (worth learning about) and has guideline suggestions for your safety depending on the pollutant level in your area. I’m checking daily for forecast updates. Much appreciated and highly recommended. Thankful for this updated information.
  • Very Helpful Sep 17, 2020

    By iRe-view
    This app has actually been super helpful during this horrendous California wildfire season. We have found ourselves checking the app several times a day and the information/numbers seem generally pretty accurate compared with our firsthand experience of air quality/smoke conditions. The information is presented in a clear and helpful format and everything usually works well. Two of the most helpful features have been the air quality projections for the coming hours and days, and the live smoke and wind-currents radar map. While we know the projected air quality numbers are not always accurate due to constantly changing wind and weather conditions, they can be very helpful in giving you some idea of how things are likely to be trending. They also seem to update frequently with the changing conditions, making the short term predictions generally pretty accurate, even if the longer term ones are not. In the air quality map section, be sure to tap on the small dark rectangle that says “Air Visual Earth” which brings up another map of the world that you can pinch-and-zoom-in to see a real time smoke and wind radar map. This app is much better than the other highly rated air quality app I tried. All in all, this app is excellent and very helpful.
  • Potential Lifesaver Jul 27, 2019

    By ttu101
    It is only just beginning to seep into the public domain how catastrophically harmful poor quality air can be. It can irritate you, hurt your head and your heart, kill you or cause dementia. Checking air quality before engaging in outdoor work is vital especially in summer months. This is a simple but well-designed app that will display pollution levels and warnings for whichever monitoring stations you select. It can also provide notifications of changes in air quality. I have not yet come across intrusive tracking, data collection or advertising; it's not necessary to create an account to use it. I check it before working outside just as I check the (standard) weather forecast. Perhaps if we use products like these we'll come to see how we are, without exaggeration, poisoning ourselves. Highly recommended.
  • IQAir - For people who take breathing seriously Oct 10, 2020

    By badboy2k
    This company makes top-quality products. Even as I unpacked my new HEPA air purifier I could see at once how carefully it had been designed and built. The excellent design and performance of the purifier encouraged me to order their air-quality sensor a few days later, so I could really know what is going into my family’s lungs. I am more than impressed with the IQ Air sensor/monitor as well. It is these sensors, when they are installed outdoors, that provide the world-wide data (minus China) for the IQ air app. I am considering purchasing a second unit to install outdoors, so I too can provide air-quality data to help us all. But there happens to be one about a block away from where I live, so I am already receiving extremely local data from a device that I trust. Easy to give 5 stars here.
  • Apr 30, 2021

    By Maxxia Arnatia
    Excellent. It makes me know what I can not see, which is the quality of the surrounding air. So I can protect myself, my family, and the ones I love. I use the data from this app in almost all of my everyday life. Thanks a lot.
  • A Friend Indeed Sep 19, 2020

    By Fuuyki
    My family lives in Medical Lake, Washington. We are working very hard to be safe from COVID 19 because we have a very young child and a medically vulnerable adult among us. After the fires in the surrounding area, we became concerned about not only meetings with the public but simply walking out our door. We began monitoring the air quality through your wonderful App. It enabled us to act BEFORE the air quality changed from moderate to hazardous. We received an air quality alert through a different service at 5pm pacific time. Which was nearly around 10 hours after the air was already in health damaging levels. Today your App helped us feel the confidence we needed to open our doors and windows and take a breath of much needed FRESH air. THANK YOU for helping us to stay healthy.
  • Current AQ features great, but forecast is a joke Sep 15, 2020

    By Veloscente
    The Good: Air Visual lets you set a local AQ station as default, and on launch, displays current AQI reading plus 48hrs of detailed history and a week of daily averages. At the bottom of the page, there is a map that lets you scan AQ readings at stations within a ~15mile radius. To get this AQ map, or any local AQ info, on Weather Underground website requires a half dozen clicks to toggle on PM2.5 filter, and WU does not offer any AQ history data, so this functionality makes AirVisual well worth the download. The Bad: I had high hopes the AIrVisual AQ forecast feature would help me plan outdoor activity by predicting windows of good air during California fire season. My hopes were unfounded: it is the worst “predictive” weather tool I have ever encountered! It would appear AirVisual’s forecast tool is based on the assumption that daytime pollution will simply dissipate overnight. With most of the West Coast on fire, the question is how much new smoke prevailing winds are bringing our way, and AirVisual’s forecast feature is clearly not built to gauge this, whether by visual smoke imaging or by other means.
  • May 12, 2021

    By Sandrine Bardot
    Being asthmatic this is a useful app. I'm rating 4 not 5 because the widget regularly stops working and needs to be reinstalled. Also, not many data points in my city and they sometines have significantly different AQ numbers - I'd love some qualitative info to understand the reason for these differences.
  • May 1, 2021

    By Goo Gler
    Horizontal slider has a thin blue line which indicates which of the three days is in focus. There is no indicator to show which hour goes with the indicated day. For example, the blue line under Saturday does not change until 2:00pm Sunday.
  • May 31, 2021

    By Nguyen Thang
    I really love this app. But It had a problem with Background Refresh, smart notification and Widget will never update until application opened again. Even put the app in white list of Battery Optimization
  • Great resource! Nov 12, 2019

    By Tripledr
    Discovered this app a couple of months ago and find it very useful in evaluating air quality, ventilating my house, and considering how to improve air filtration in my house. With continuing fires and air pollution in N California, I have developed bronchial irritation and increased congestion (which closely tracks air quality conditions reported by air visual). I attribute the good info to lots of reporting stations in my area. Of particular interest is knowing when to ventilate my house (during periods of good air reported by air visual). Also, the app is helping me evaluate the performance of my whole house air filter system; my house filter helps but need improvement. As a result of the app's functionality, I'm considering buying a larger version of IQAir's home air purifier as an adjunct to my whole house filtering. I give a 4 star rating because there is always room for improvement.
  • May 17, 2021

    By Paul Ashman
    Like any app there is always room for improvement but in the time I have had it, it has been very useful and worth getting.
  • Pretty darn good Aug 13, 2020

    By Salsasinger
    Ever since I had pneumonia, I check before I hang out outside and it’s helped a lot... this app has a location reader closer to where I live than any other app, sometimes I have found the air quality isn’t great even though it says it’s OK on the app (I have really sensitive lungs at the moment and environment really affects them) but generally it seems to be pretty accurate... and I like that there’s weather attached to it. I do wish there was a reading a little bit closer to where I am, but the main thing I wish they would change is the app image. Especially during the pandemic, I hate seeing an icon of someone with a mask on every time I go to check the air quality, just kind of depressing... it would be great if it were changed to a more positive image! We could all use more of that!
  • May 5, 2021

    By Margie Miller
    Requires a refreshing more often. Phone app doesn't match computer version. Keep improving for success! Otherwise, love the app.
  • Nice features, OK accuracy, one of many Aug 20, 2018

    By Bets88
    I’ve found a number of sources to test my air quality. AirNow doesn’t have as many local sensors, so it’s best for a general idea and for ozone levels, which some don’t display. My favorite for local particle readings now is PurpleAir, which has local sensors and you can add your own, similar to Weather Underground, and you can even integrate with their site. AirNow has the unique feature of displaying overall air quality from your device home page as if it’s the number of notifications you’ve missed. Took me a minute. Now I have my general idea of air quality at a glance. Good for those of us opening and closing windows, turning on and off air filters, or wearing masks to exercise outdoors. Thanks for a stable app. Build those sensor numbers.
  • Asthma Family Says Thanks! Sep 9, 2018

    By MrsWalker2010
    This app has been incredibly helpful for our family. We have 3 people in our family with asthma, one of which has severe asthma. This app helps us to know when they are safe to play outside and when going to the museum or the mall would be a better idea. We live in the Rocky Mountains, so, the smoke can get pretty intense here during the summer, which makes us use the app multiple times a day. The only problem for us is that we live in the mountains so the air quality is different here (usually worse) than it is where the air quality monitor is. The closest monitor is 30-45 minutes from where we live. Other than that, we love this app!
  • May 8, 2021

    By J
    medium widget is not showing air quality properly when the numbers are in the double digits. it will only show the first digit. for example, if the air quality is 68 it will only show the 6. I have the latest version. and I've already mailed the developer. update. still doesn't work and now the widgets are twice as big with no increased information. also, the choices for sizes of widget are less than before. there used to be larger choices that would show upcoming weather but those are now gone.
  • Can be useful, but not always accurate Aug 14, 2018

    By J McRae
    I use this app to help prepare for bad air conditions, since I live in the PNW and the wildfire smoke aggravates my asthma. The statistical information and maps are really interesting and informative and the app itself is easy to use, but now I'm concerned that the information I'm getting is not accurate. There is currently an air advisory due to smoke in my area. For some reason, this app is insisting that the AQI is "Good" despite the fact that I can actually see pollution in the air. I'm not sure if this is really the app's fault or the fault of wherever the information is being sourced from, but regardless, I don't think I can rely on the information I'm being given to help me make informed decisions about my health anymore. It's unfortunate since I was really excited to find an app like this in the first place. If you decide to download it anyway, please be cautious and don't use it as your only source of information.
  • Apr 22, 2021

    By C Ellis
    Just downloaded this app, seems very comprehensive. However why does my suburb shows green for healthy air when there is a slight smoke haze in the area - not very helpful for asthmatics !
  • May 23, 2021

    By Howard Posener
    Very good, would like a dark theme easy on the eyes. I was hoping this one would have a dark mode
  • uncomfortable UI and sightly more cautious air rating Mar 28, 2018

    By Flatkatcarsnicoenckfc
    This app is useful because it has daily notifications and a widget. I use this app to check the air quality in Korea. But the number that this app reports is almost always higher than the Naver number, which is probably most correct in Korea. If it’s :( unhealthy on AirVisual, it’s just :/ not good on Naver. or if it’s :/ not good on AirVisual, it’s :| ok on Naver. It can be good to be cautious though! The worst part about this app is the UI. Swiping from the left never works to go back to the previous screen so I have to move my hand and push the back button in the top left corner. So annoying! There are a lot of menus on the bottom that I never click on like a map, a world ranking, and other not-that-useful stuff. Overall, it’s not that nice to look at and a bit frustrating to navigate. So I give 3 stars.
  • It Might Be a Good App if... Sep 15, 2020

    By Wildgreensoul
    I used the app for a couple of days and was pleased with the ease-of-use and the number of places I could monitor at a glance. More importantly, the app utilized different monitoring stations than the epa website, so it didn’t seem redundant. And, always a sucker for something pretty, its slick appearance appealed to me Then one day I was at work and the smoke kept rolling in, soon obscuring the view of a nearby butte, yet the app’s AQI number read 187, pretty much in the same range it had been for a number of hours. Finally, after I finished my work project, I checked 2 other monitoring sites and the AQI was actually over 400! Maybe it was a glitch with a particular monitoring station? Maybe this really is a great app??? In that moment I was disappointed, felt like got a false sense of security counting on the app so I deleted it.
  • Love the info-as far as it goes. Definitely recommend as one tool. Sep 12, 2018

    By KaileighATara
    Great app, but as a small population state in MAINE. I am in the second largest city, Lewiston and I am not sure if the readings ARE actually for LEWISTON or the most well known city of PORTLAND which would mean a difference for someone like me. What would be very helpful for people with lung diseases and air quality issues- knowing mold/ mildew spore counts as well as allergens such a ragweed, goldenrod, and other pollens. These are just as important to know for most of us. Thanks for the app- I have been telling others about it, but then I have to go to other sources for the other info- one app that would tell me everything I need to know as a person with severe lung disease and allergies would be the BEST!!!
  • Good current info, horribly inaccurate forecasts Dec 5, 2019

    By Fudjvg
    The app will tell you when the air is bad currently, but its forecasting seems completely disconnected from reality. It will pretty much always tell you that the air will get cleaner later in the day or tomorrow, even when other forecasters, and common sense of my experience tell you it won’t. I live in Salt Lake City , and during the winter we get poor air when there is no wind or weather system passing through. The local forecast can accurately predict when these systems will occur and clean the air. However, AirVisual seems to always say the air will get better tomorrow, even when no weather is coming for a few days.
  • In-app notifications won't clear Sep 20, 2020

    By H5N.PNW
    The app appears to still need a lot of work. Do the owners use this app? We have had fires recently andi downloaded to get an idea of what the air quality index is. However, I keep getting notifications asking me if I want to learn whether or not fires are getting worse. These notifications are ridiculous and even if you clear them, they reappear almost immediately and constantly. There's not even a setting change turn this off. Disabling "Smart Alerts" doesn't turn off the notifications. I receive these notifications literally every few minutes.
  • Weird inaccuracies Aug 19, 2018

    By Sandygal1976
    So overall it’s helpful, but there are occasional weird inaccuracies. I’m in western Washington state where we have been inundated with forest fire smoke and much of the region has high pollution values. There is a random city near me (Issaquah, WA) that has consistently show very good values, even while surrounded by smoky areas. I contacted the company about it and they had some hard to decipher response but basically said that the Issaquah sensor is not measuring all pollutants. It wasn’t clear then as to how other sensors measure pollutants and how accurate any readings are. I would expect consistency, but it’s not happening. So take the readings provided for general guestimates only I guess...
  • Can’t trust it! Sep 14, 2020

    By veg4rs
    The app is nice enough, but there’s something seriously wrong with the actual data. For a few weeks now I’ve been comparing the values in the app against the actual readouts of the purple air sensors that it uses, and they’re never the same. Right now the sensor is showing 159 on the AQI and the app is showing 101, and that’s pretty typical for the discrepancy. Sometimes it’ll even show green when I can smell smoke and purple air sensors are telling me it’s in the deep red! I’ve given feedback about it within the app, but haven’t heard back. Go to the purple air site instead, or use the less detailed epa app
  • May 16, 2021

    By Dave Johnson
    No use to me at all. I live in the UK's most polluted area, close to the infamous Walleys Quarry landfill site - apparently though the air is great! Neither is there any record whatsoever in your graph of last night's appalling stink which resulted in yet another colossal amount of emergency calls to the Environment Agency. A pointless, inaccurate app. Uninstalling.
  • Apr 26, 2021

    By ano nymo
    this ad obsessive [cr]app has always been maximally VPN-UNFRIENDLY. when 2nd class widget manages to update itself w/ an actual AQ read, WIDGET NEVER UPDATES AQ 'HISTORY' IN MAIN [CR]APP. next time widget fails to data refresh, it discards last widget AQ update for the last AQ history entry in main [cr]app. ALL AQ UPDATES, whether by widget or main [cr]app SHOULD ALWAYS BE SAVED LOCALLY TO MAIN [CR]APP AQ HISTORY. MAKE THIS [CR]APP *VPN FRIENDLY*, too. fixes long past due.
  • Forecast data is completely unreliable Aug 13, 2018

    By c0rlette
    While current local condition air quality seemed accurate, the forecast data, even just a few hours ahead, was completely wrong. I live in Oregon and we had horrible air quality last summer, in the unhealthy range repeatedly, even crossing into hazardous at times. With many wildfires burning across our region, we are all jumpy in fear of a repeat. For some reason, despite consistently good air this year, the app predicts unhealthy air 4 hours in the future every single day. During the first week I cancelled a number of recreational and outdoor activity plans based on these predictions. I am especially peeved about one of these cancellations, something that I really wanted to do and lost some reservation money. I followed the site for another week—same thing every day. I know air patterns and fire conditions can change rapidly but AirVisual was never correct. The forecast ability was the main draw for me so I deleted AirVisual and swapped it out for an app with a very simple design, just current AQ numbers in bubbles on a map, easy to navigate around a region.
  • May 31, 2021

    By Melody Concerto
    Seems not to work for my location properly and developers are unresponsive when locations are reported as being inaccurate.
  • Horribly inaccurate. Apr 30, 2017

    By Galia Stauffer
    I live in South Korea and have for a total of 5 years, spread out over the last decade in a 3 year stay and now 2 years into a 5 year stay, in that time the air quality here has gotten much much worse. I was recently diagnosed with asthma (something that is apparently becoming more common for people in Seoul) and have to check the air quality regularly. If it's above 100 aqi I have to wear a special filter mask to leave the house. I got this app to make it easier to check the AQI regularly, one of the big draws for this app is it notifies me if the AQI goes above 100, or it's supposed to. Yesterday it never dropped below 100 and I never got a notification (thankfully I'd had the thought to check online before leaving the house) and upon checking the app it said an AQI of 63 when it was really 163. If you're relying on this app for all your AQI information and live in a city with poor air quality such as Seoul you may be putting your health at risk by relying on this app.
  • May 31, 2021

    By Marc Plano-Lesay
    Sends notifications unrelated to the app use-case, fails to refresh data quite often, unreliable.
  • Terrible app with device Jul 10, 2019

    By MusicalFreedom
    If you have an air iq, which I just bought. This app is pretty terrible. It has HUGE gaps in the reporting. For example I have my device on all day. And the graph for “daily” report only shows info for 10am-2pm then a huge gap of no data, and then more reporting from 5pm-11pm, then a huge gap again between 11pm-2am. It’s completely random each day with times it will decide not to record info. The decide itself shows what happened over the last 24 hours fine. But the app shows these huge gaps which makes it useless since you can’t look back at history on the device itself beyond a day. So this problem with the app makes in unusable and also severely damaged the usability of the device too since you can’t access historical data beyond a day. This makes testing in a bad air home almost impossible to see if you are making any progress or not. For a $300 device, the app should work flawlessly with it.
  • May 29, 2021

    By lehyunsu
    Multiple nearby stations not updating for weeks. Had to resort to a large city station which is half as reliable for local forecasts.
  • I really want to have this app... Sep 15, 2018

    By Brachylagus
    I want to be able to monitor the air quality for the sake of my child (who has a chronic condition) to aid in deciding if we do outdoor or indoor activities. I really was hoping this app would work, but there are FAR too many times it will say it’s a green air quality day with little or no particulate concerns when in reality it’s an orange or red air day. For example today there is literally ash falling from the sky as a result of a near by wildfire....and the app says it’s a Green Day with only 11 US AQI. If I look it up on a trusted web site it says it’s a red air day with 191 AQI. Since I can physically see particles in the air and even indoors can only smell smoke, I’m sure you can understand which one is the accurate one. I’ve officially given up on this app as I obviously can’t trust it.
  • Excellent in theory, crashes constantly Sep 16, 2020

    By Bookbinder lad
    Every time you switch away from the app to write a text or answer a call or look at a different weather app, when you return to it, it crashes. Without this problem it’s excellent, but with it, the app is very frustrating, because obviously pollution levels are something you check throughout the day. Update: I wait to update to the current year’s version of iOS right up until the new iOS is released. Tonight after upgrading from 12.x to 13.7, I hoped the crashes on IQAir would improve. Instead they are much worse: the app is unusable now. You see an initial reading and any interaction at all crashes the app, as does no interaction but waiting about 5 seconds after opening.

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