# Air Quality Index – International PM-Pollution — user reviews > 20 indexed App Store user reviews of Air Quality Index by Pilcrow AG, rated 1.00/5 from 6 ratings. - Source: https://appshunter.io/ios/app/air-quality-index-international-pm-pollution/id595141966/reviews - App overview in markdown: https://appshunter.io/ios/app/air-quality-index-international-pm-pollution/id595141966.md - Rating breakdown: 5★ 0 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 6 ## Newest reviews (5 of 20) ### 1/5 — Useless *2014-08-27, version 1.0.7* Couldn't get it to work at all. ### 1/5 — Don't waste your money *2014-08-25, version 1.0.7* Worthless app. Functionality is confusing at best and overall has no value. If it works at all, and that's doubtful, it's completely un-intuitive. I have not had it function effectively once since purchase and if the company offering it had any integrity they would offer everyone their money back ### 1/5 — Don't Buy This! *2014-02-27, version 1.0.5* It will not open. Such a waste and shouldn't be here. ### 1/5 — Crashes *2014-01-21, version 1.0.5* I can't even open this App with my ipad4 , newly updated ios 7, just jumped out immediately, fix it soon! ### 1/5 — Doesnt work *2013-09-30, version 1.0.2* Bought the air pollution-- it doesnt function whatsover --- just a map of the USA - save your 99 cents ## Most critical reviews (10 lowest-rated) ### 1/5 — Shows nothing *2020-10-03, version 3.2* Worthless app. Nice looting map absolutely no Infopeople. ### 1/5 — DO NOT BUY THIS APP *2020-05-10, version 3.2* Total scam. Does not work at all. All you get is a fancy graphic. Enter your zip code and nothing happens. Menu item for local air quality returns numbers for somewhere in Canada. A negative rating, reporting to Apple. ### 1/5 — Abandoned in 2015? *2018-08-06, version 3.2* Pin drop locations are not up-to-date and data from the current pins is incorrect. For example, on 8/4/18, at Yosemite National Park, this app reported a "Good" AQI of 8, when the EPA reported a "Hazardous" AQI reading of 456 due to the Ferguson fire. Clearly the developers haven't worked on this app since their last update in 2015. ### 1/5 — Do Not Buy This! *2018-04-13, version 3.2* I wish I had read the reviews before I did. It doesn’t work. It’s trash. ### 1/5 — App Does Not Work - Do Not Buy *2018-03-21, version 3.2* I’ve tried and tried again to get this app to work and no matter how many times I reload it, it still crashes. The app simply does not work and I seems as though I am not the only one who has been experiencing issues... ### 1/5 — Do not buy *2015-05-13, version 2.2.0* Does not function ### 1/5 — This is a scam! *2015-05-11, version 2.2.0* Will no even open up! Don't buy! ### 1/5 — Agree doesn't work *2015-05-08, version 2.2.0* Just purchased and neither the air quality nor the weather app works. ### 1/5 — Doesn't work *2015-04-29, version 2.2.0* I was excited about this app until after purchasing, it won't load past the preview page. I also made efforts to get in contact with the app help link and asked for a refund, but still have got no reply. ### 1/5 — Confusing *2015-01-04, version 2.1.0* For something that should be so simple and also free, not 99 cents, this app failed miserably. It will only show you one city at a time and contains a confusing promotion for an unrelated app. ## Most praised reviews (5 highest-rated) ### 5/5 — Extremely Accurate *2014-03-23, version 1.0.6* With my frequent trips to China and Hong Kong, I found myself on need of an easy way to pre-check the air quality before I left home. I was initially skeptical of the apps accuracy, however after cross referencing the with reputable online sources, I was thrilled to find out that this app is extremely accurate. Highly recommended for any frequent travelers. ### 5/5 — Great info to have *2014-03-21, version 1.0.6* This is a very good app to have in my pocket, occasionally I need to travel to Hong Kong and China and this app provide PM 2.5 data which is color coded and very clear and useful. ### 3/5 — Can't search city, it gives you a search place but no response then... *2014-08-17, version 1.0.7* Please can you fix it?! ### 3/5 — Only USA and SE Asia *2014-07-27, version 1.0.7* A smattering of USA, and a fair number of Chinese, Indian, Thai, Malaysian cities. No dates and times on AQ index values, so no way of knowing how current. ### 2/5 — Accurate? *2013-05-16, version 1.0.1* My other online and local sources are conflicting with the measurements of this app. I cannot verify the accuracy of these readings. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*