Age Rating
4+
Apps in this category do not contain restricted content.
9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
12+
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
COCOA - COVID-19 Contact App Screenshots
COCOA - COVID-19 Contact App posterCOCOA - COVID-19 Contact App posterCOCOA - COVID-19 Contact App poster

About COCOA - COVID-19 Contact App

The service of Contact-Confirming Application COCOA will be discontinued.
Please update to the lastest version of this app and start the procedure to end the service.
Regarding Service Discontinuance, please refer to the below URL.

https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/cocoa_00138.html

This app is for use in Japan.

■ Supported OS versions
Android 6.0 or higher

■ FAQ & Contact
FAQ (Japanese): https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/kenkou_iryou/covid19_qa_kanrenkigyou_00009.html
E-mail: appsupport@cov19.mhlw.go.jp

■ Privacy Policy & Terms of Use
Privacy Policy(English): https://www.mhlw.go.jp/stf/seisakunitsuite/english_pp_00032.html
Terms of Use(English): https://www.mhlw.go.jp/stf/seisakunitsuite/english_rk_00031.html
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What's New in the Latest Version 3.0.0

Last updated on Nov 17, 2022
Old Versions
・Announcement of Service Discontinuance is displayed on various screen. (including welcome screen)
・A function to stop application and OS background refresh has been added.
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Version History
3.0.0
Nov 17, 2022
・Announcement of Service Discontinuance is displayed on various screen. (including welcome screen)
・A function to stop application and OS background refresh has been added.
2.0.1
Jun 9, 2022
- Updated part of the tutorial
- Improved the wording and design in the app
- Improved the accessibility
- Fixed a minor bug
2.0.0
Apr 7, 2022
WHAT'S NEW
・Updated the API used for contact confirmation to the latest version.
・The date and time of close contact it is based on UCT and in case of time zone change the time period is correctly converted.
・Smaller design adjustment.
1.4.1
Nov 26, 2021
・Fixed the problem that the app could not be stared after the version upgrade under certain conditions
1.2.6
Sep 8, 2021
・ Improved how the close contact notification is displayed
・ Improved the images and wording within the app
・ Other minor improvements
1.2.1
Dec 15, 2020
The app has been updated to notify only those who may have come into close contact with positive individuals during a certain period.
1.2.0
Dec 3, 2020
Added a function to send operating information useful in investigations into the causes of the app malfunctions.
1.1.5
Nov 4, 2020
Changed the guidance when entered in contact with people who have tested positive.
1.1.4
Sep 24, 2020
Optimized push notification's close contact criteria.
Optimized application's close contact criteria.
1.1.3
Sep 8, 2020
Improved internal processing of the application
1.1.2
Jul 13, 2020
- Modification of a series of processing related to diagnostic submission
1.1.1
Jun 30, 2020
- Fixed how usage start date is displayed
1.0.0
Jun 19, 2020

COCOA - COVID-19 Contact App FAQ

Click here to learn how to download COCOA - COVID-19 Contact App in restricted country or region.
Check the following list to see the minimum requirements of COCOA - COVID-19 Contact App.
iPhone
COCOA - COVID-19 Contact App supports Chinese, English, Japanese

COCOA - COVID-19 Contact App Alternative

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