airCHeck

The current air quality all over Switzerland and Lichtenstein.

Cercl’Air · ch.ti.oasi.android.airquality

Not rated yet 10K+ downloads v6.2.0 8.1 MB Android 7.0+ PEGI 3 · Everyone

Download APK 8.1 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v6.2.0 (6127)
Updated: Aug 31, 2026 (1 month ago)
APK size: 8.1 MB
Requires: Android 7.0+ (API 24)
CPU support: Any (no native code)
Category: Weather (app)
Listed since: Nov 7, 2021 (at least)
Permissions: 8 (2 sensitive)
Website: cerclair.ch
Developer contact: [email protected]

About this APK

airCHeck is an app by Cercl’Air in the Weather category, listed since at least November 2021. It has no native code, so it runs on any Android processor.

Since version 6.1.1, the APK grew from 6.4 MB to 8.1 MB and the minimum Android version rose from 5.0 to 7.0. It asks for 8 permissions, 2 of them sensitive: precise location and approximate location. It asks for the same permissions as version 6.1.2. The app can read the advertising ID that ad and analytics services use.

What's new in v6.2.0

Technology Updates.

Description

From the listing uploaded by “appupdater”.

With airCHeck you can look up the current air quality in Switzerland an in the Principality of Liechtenstein. Maps and monitoring stations show it to you. In addition, airCHeck informs about the health effects and what one should be aware of in case of high air pollution. airCHeck • Informs about the current air quality at your location or in any other arbitrary site in Switzerland and Lichtenstein. • Shows the current air pollution index and fine particle, ozone and nitrogen dioxide concentrations. • Grants open access to the latest measurements of the cantonal monitoring stations and the national monitoring network. • Offers background information on formation and sources of the main air pollutants. • Tells about the health effects. • Gives some advice on how you can protect yourself in case of high air pollution.

Version history

3 versions are listed, going back to v6.1.1. Since v6.2.0 it requires Android 7.0+.

v6.2.0 LATEST Aug 31, 2026 8.1 MB TRUSTED v6.1.2 Mar 5, 2026 8.1 MB TRUSTED v6.1.1 Jun 28, 2026 6.4 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 31, 2026.
Certificate issued to “Cercl'Air” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Aug 31, 2026
Validated against Google Play Aug 31, 2026
Signed byCN=Cercl'Air, OU=IT, O=Cercl'Air, L=Fribourg, ST=Switzerland, C=CH
Signing certificate (SHA-1)20:1E:1C:54:39:F8:A0:29:13:5B:E9:89:93:A2:B7:0E:B0:4A:F7:68
File MD50f43aaea73227798c292f43de91d0b1c
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (8)

airCHeck requests 8 permissions, 2 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) ch.ti.oasi.android.airquality.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Location android.hardware.location
GPS android.hardware.location.gps
Portrait screen android.hardware.screen.portrait

airCHeck APK: questions and answers

Is there a version of airCHeck for older Android phones?

The current version needs Android 7.0 or later. Version 6.1.2 is the newest listed build that installs on Android 6.0 and later. Get version 6.1.2 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the airCHeck APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 0f43aaea73227798c292f43de91d0b1c.