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.
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
・Announcement of Service Discontinuance is displayed on various screen. (including welcome screen)
・A function to stop application and OS background refresh has been added.
Ratings and Reviews
Network Connection Error
If you want to (or must) use the Exposure Notification system on iOS in Japan, you must use this app. If you attempt to register in the app before you arrive, you will get an unhelpful “Network Connection Error”.
The app will not let you proceed unless you are connected via a Japanese network. Note that international roaming on a foreign cellular network will not work. You must connect via a WiFi network in Japan or via a Japanese cellular network.
Network connection error issue resolved
I hope this helps many of you having this issue.
Thank you for providing the app.
A major limitation is the lack of any feedback that the app is functioning properly and recording close contacts. It is like having a smoke detection without a test button.
I believe showing a count of recent contacts over a period of time does not raise any privacy concerns while at the same time adding a bit of confirmation.
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Other Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
- Ministry of Health, Labour and Welfare - Japan
- 80.2 MB
- Requires iOS 13.7 or later.
English, Japanese, Simplified Chinese
- Age Rating
- © 2020 Ministry of Health, Labour and Welfare.