# Air Purifier-USA — user reviews > 13 indexed App Store user reviews of Air Purifier by LifeSmart, Inc, rated 1.27/5 from 22 ratings. - Source: https://appshunter.io/ios/app/air-purifier-usa/id1073812724/reviews - App overview in markdown: https://appshunter.io/ios/app/air-purifier-usa/id1073812724.md - Rating breakdown: 5★ 1 · 4★ 0 · 3★ 0 · 2★ 2 · 1★ 19 ## Newest reviews (1 of 13) ### 1/5 — 0 stars if I could *2016-06-19* No matter how many times they update the app, it still doesn't work. It crashes whenever I try to connect a device. Completely useless. ## Most critical reviews (10 lowest-rated) ### 1/5 — Terrible *2025-03-22* The app won’t connect to the devise anymore?!?!!!!!!???? ### 1/5 — Horrible App *2023-04-10* Unable to connect to the product. Useless. ### 1/5 — May be the worst app yet *2021-08-23* Unclear. No menu. Can’t connect to my WiFi because it is not 5G? The manual says it can connect to 2.5. Great air cleaner, Bad app. ### 1/5 — Not update. Useless *2020-12-29* Does not work. Zero support for new OS or modern networks ### 1/5 — Completely nonfunctional *2020-09-16* This app is ostensibly used to control the QuietPure brand of air purifiers. However, the app does not work, at all. It is unable to pair with my air purifier whatsoever, despite trying multiple times. This app hasn’t been updated in four years. I think it’s been abandoned. It never even got an update to support the iPhone X screen resolution. At least the purifier works fine without the app, just by using the buttons on the device. But this ruins a lot of the functionality I ostensibly paid for, such as the ability to manage the device remotely. ### 1/5 — Useless app *2020-04-24* This app should be removed. It is a waste of server space. Does not work at all. NO support. No upgrades for 3 freaking years!!! Ridiculous. ### 1/5 — Disappointing *2018-08-21* This app connected to my air cleaner fairly quickly, however there is no value added having this app. Not clear what the app does, there is no feedback or information from the machine and the weather readout is minimal and pointless. I expected more from such a highly rated machine. Improvements are desperately needed! ### 1/5 — Doesn’t work *2017-12-02* During install I put my QuietPure into pairing mode then configured the app for my home wifi. App has an error connecting to network. ### 1/5 — App doesn't work *2017-02-24* This app does not work with my Quietpure. It did work for months after they fixed a bug last year... That took several contacts to get them to fix it. Now, another bug and the app won't work. The developer is unresponsive to my numerous contact for support... This routine is getting old. I wish there was a different app for my machine from a more reputable developer. ### 1/5 — Doesn't work *2016-06-30* Won't connect to my quietpure home. Even got a replacement machine and the app still won't connect Update: still won't connect to my quietpure home. It always crashes at the last step of the setup. It will connect to wifi and register the device but then it won't connect to the machine ## Most praised reviews (2 highest-rated) ### 2/5 — Not user friendly *2018-12-28* This app is very confusing. I don’t know what all the numbers represent and the background color is so light it makes it hard to read the font. It also said data could be stored on Amazon Cloud but I have not found anywhere to access the information. ### 2/5 — App connected easily, but weather data missing *2017-08-18* I easily connected the App and the QuietPure Home air purifier today. However, there is a message on the App screen that says "Special weather data yet to crawl please wait for the next APP upgrade." It looks like the last App upgrade was over a year ago. I hope the weather part of the app gets fixed. --- *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 2026-06-01.*