Numerous individuals in Hanoi and Ho Chi Minh City (HCMC) have said they can't find AirVisual, an air quality estimation application in Google Play and App Stores since October 6, local media revealed.

Clients in Vietnam are not able to download AirVisual to their cell phones anymore. When continuing to download, they will be informed with the message "This application isn't right now accessible in your nation". In any case, the ones previously introduced are as yet working.

"I intend to install this application for my relatives so they can monitor Hanoi’s air quality daily, but I cannot find it, while I can still use it on my smartphones," said Ngo Hung, from Kham Thien street, Hanoi.

Furthermore, the AirVisual fanpage is likewise blocking access from Vietnam. Entering the fanpage for Vietnamese is impossible except if they use a virtual private system (VPN).

Hanoi and HCMC additionally vanished from AirVisual's rankings for a couple of hours, at that point returned on October 6 night and Hanoi's air quality parameters were just given by the Hanoi Environment Monitoring Portal. Beforehand, the application said it coperate with 14 air control stations, including ten government-run stations and four kept running by non-administrative associations to gather information.

Prior to "vanishing" from App Store and Play Store stores in Vietnam, AirVisual was the most downloaded air quality application in the nation a week ago.

AirVisual, one of the top quality measurements, has been profoundly valued by numerous clients since it tends to be used on a variety of platforms (iOS, Android, Web) and it is free, structured with Vietnamese interface and continually refreshed information from numerous sources.

Lately, clients who have just introduced AirVisual can still see the parameters. The data on AirVisual on the official site airvisual.com is also finished, alongside guidelines for downloading the application for the two iOS and Android clients.

For what reason did AirVisual vanish from the application store?

AirVisual affirmed that numerous Vietnamese individuals rating the application as negative made them have to withdraw from Play Store, App Store and Facebook in Vietnam, as indicated by an AirVisual agent.

In an email, the agent said that the greater part of the negative review and low rating of AirVisual App Store and Google Play just as on Facebook originate from Vietnam.

"This information is unbelievable, I am standing outside a forest, but, air quality index is higher than that in the city. Are you going to 'dump' Vietnam?", said a comment on Play Store.

In addition, numerous Vietnamese clients' comments express doubt in AirVisual, saying it is misleading and unreliable.