COCOA - COVID-19 Contact App APK

Version 1.1.1 - jp.go.mhlw.covid19radar
Last updated: 2020-07-01

COCOA - COVID-19 Contact App apk

APP Information

Download Version 1.1.1 (1593348705)
Apk Size100.14 MB
App Developer厚生労働省健康局
Malware CheckTRUSTED
Install on Android6.0 and up
App Packagejp.go.mhlw.covid19radar.apk

Download COCOA - COVID-19 Contact App 1.1.1 APK

App Description

COCOA - COVID-19 Contact App is mhlw,covid19radar,medical,covid-19,contact, content rating is Everyone (PEGI-3). This app is rated 5 by 1 users who are using this app. To know more about the company/developer, visit 厚生労働省健康局 website who developed it. jp.go.mhlw.covid19radar.apk apps can be downloaded and installed on Android 6.0 and higher Android devices. The Latest Version of 1.1.1 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 1+ times on store. You can also download jp.go.mhlw.covid19radar APK and run it with the popular Android Emulators.

Officially provided by the Ministry of Health, Labour and Welfare of Japan (MHLW), this app notifies you of close contact with COVID-19 positive users to help the government and healthcare organizations contain the spread of COVID-19.
The app will be in preview for one month, and functions and design are planned to be updated. Please install the latest version that MHLW will announce on their website and in the app.

■ What you can do
The app recognizes close contacts (within 1 meter, 15 minutes or more) between smartphones running this app. If you test positive for COVID-19, you can register anonymously in this app. If you have been in close contact with a user who tested positive, the app notifies you of potential infection and provides guidance to protect your health.

■ Privacy
No personal information such as your name or phone number is collected. No geolocation data including GPS data is collected.
All data is encrypted and saved locally on your smartphone. All data is automatically deleted after 14 days. Your movements cannot be seen in any way by anyone including government agencies or third parties.
You can stop recording close contacts anytime. Turn on recording the settings in the app or delete the app.

■ Recording ‘close contact’
This app records ‘close contact’ across Android and iOS devices by using Bluetooth and Exposure Notification API provided by Google/Apple.
When you run this app, each smartphone generates a random code. This code changes every 10-20 minutes
When smartphones running this app are in close contact, they exchange random codes. Received codes are stored only on the devices.

■ Close contact notifications
Users who tested COVID-19 positive, can choose to share the random codes that their devices have sent out. Each device periodically checks if it has previously encountered any of the shared codes. If the code shared by a COVID-19 positive user matches with a code stored on your device, you will be notified that you have been in close contact with COVID-19 positive user and provides guidance to protect your health.
To receive notifications of close contact with COVID-19 positive users, you need to download this app and enable exposure notification function on OS settings. The app only works with others who have the official app installed.

■ Guidance to protect your health
In the app, you can also check the list of dates you were in close contact with COVID-19 positive users during the last 14 days. If you have more than one close contact, please use the symptom checker provided in the app to receive appropriate guidance such as contact information of healthcare organizations. Depending on the symptoms, you will be advised to take a COVID-19 test. You will also find instructions if you want to reach out healthcare organizations by phone.

■ When you tested positive
When you are tested COVID-19 positive, please voluntarily register so in the app to notify other users of potential infection. When healthcare organization registers your positive test results to “The Health Center Real-time Information-sharing System on COVID-19” (known as HER-SYS) provided by MHLW, a processing number is issued to you. Entering this processing number in the app will allow you to register your positive test result.

■ Stop or delete close contact recording
You can stop recording close contacts with other users anytime by changing app settings. You can delete close contact history (14 days) anytime by deleting the app.

■ Availability
This application will be available until COVID-19 ends.

■ Supported OS versions
Android 6.0 or higher

■ FAQ & Contact
FAQ (Japanese):

■ Privacy Policy & Terms of Use
Privacy Policy(English):

App ChangeLog

  • - Fixed how usage start date is displayed

App Screens

COCOA - COVID-19 Contact App App Screen 1COCOA - COVID-19 Contact App App Screen 2COCOA - COVID-19 Contact App App Screen 3COCOA - COVID-19 Contact App App Screen 4COCOA - COVID-19 Contact App App Screen 5COCOA - COVID-19 Contact App App Screen 6COCOA - COVID-19 Contact App App Screen 7COCOA - COVID-19 Contact App App Screen 8


requires following permissions on your android device.

view network connections
Allows the app to view information about network connections such as which networks exist and are connected.

pair with Bluetooth devices
Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.

Allows access to the list of accounts in the Accounts Service.

full network access
Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.

prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Todd Schmidt-avatar

    Easy install. I always have Bluetooth off unless connected to headphones, so breaking that habit will be difficult. This doesn't work unless Bluetooth is on. Anyone with privacy concerns, none here, but I hope you have turned of GPS location tracking. I'm not sure those people who are concerned about privacy are even aware their location data is being tracked and stored. See Google Maps TimeLine, which I use. Personally I would favor a more aggressive contact tracing app for the case of Corona.

  2. Doctor Shred-avatar

    Bluetooth Range. Class 2 (the most common kind) operate up to 10m (33ft), and class 3 are the least powerful and don't go much beyond 1m (3.3ft). Why not use mobile data to monitor the entire city, country or world?

  3. Florian Castellane-avatar

    Florian Castellane


    Straightforward app, pretty good explanations of how this works, 5/5

  4. katsumi iimura-avatar

    Pixel 3a XL cannot be used because it does not proceed from "registration".

  5. Eric Liang-avatar

    No GPS request, good.

  6. Anib Imger-avatar

    It's working too fast

  7. Monikie Ellington-avatar

    Monikie Ellington


    Giving this 5 stars because it is in English. Thank you very much for that

  8. イージャクリン-avatar



    Sharing this with my friends. Let's all help to make Japan safe.

  9. 横山豪-avatar

    Good. Good. Good.

  10. Dewi Nikki-avatar


  11. 秋山尚樹-avatar


  12. masasi sada-avatar

    masasi sada



  13. Noriyasu Vontin-avatar

    Noriyasu Vontin


    問題なくインストールでき、個人情報を登録せず利用開始できました。 機能についてもっと長く使わないと分かりませんが、今までの気づきをまず共有します。 1. ステム言語が英語の場合アプリの表示も英語に変わります。 2. 機能的に問題ないですが、厚生労働省のメイン画面のバナーには英語の...welfareのeが欠けています。 3. 友人にシェアボタンでアプリをLINEで送って見ましたが、Androidアプリなのでplayストアになりますね。友人がiphoneなので、役に立たないリンクでした。アクセスするスマホによって、自動的にアップストアやplayストアにつながるといいと思います。 以上によって総合的にまず3つ星にしました。

  14. Tsuyoshi SUGIBUCHI-avatar

    Tsuyoshi SUGIBUCHI


    海外在住で、英語設定の海外スマホと居住国が日本以外のGoogleアカウントを用いてインストールしましたが全てスムーズです。気になる点は(1) 英語版の登録名にある"MHLW official"は日本人の私にもハテナ? です (2) アプリ自体はよく英語化されているのですが、スプラッシュスクリーンとアプリ上部のバナーに日本語が残るのは気になります。特に旅行者にとっては読めない文字で書かれたものは何かしら不安を感じます。厳しい言い方をすればアマビエも日本人の間だけで通じる内輪ネタで英語版のスプラッシュスクリーンには相応しくないです。シンプルな英語のみのスプラッシュとバナーにして、アマビエについては別途アプリ内に紹介ページを設けた方がよいと思います。

  15. The Caring Angel Stargrl232-avatar

    The Caring Angel Stargrl232


    Cool! Thanks.

  16. Alessandro Baffa-avatar

    Alessandro Baffa