Wisconsin is launching the WI Exposure Notification app. This tool has great potential to complement our state’s existing contact tracing efforts. WI Exposure Notification allows users to be quickly notified that they were in close contact with another individual who has tested positive for COVID-19. This will support Wisconsinites in our communities to take preventive measures like self-quarantining and getting tested, which will reduce the chance they will infect others. This all contributes to slowing the spread of the virus throughout the state. As we had said since the beginning, our economy will bounce back only when people are healthy and feel safe.

Within two days of the app’s launch on Dec. 23, Apple and Google will send out push notifications to encourage downloading or enabling the app.

We are asking you to share the news of the app’s launch with your membership and other partners. Please encourage them to use the app, as the more people that do, the more effective it will be in helping Wisconsin stop the spread.

Below you will find key information on the app, including how it works, how it benefits Wisconsin, and how it protects user privacy.

  • What does the app do?
    • WI Exposure Notification uses Bluetooth technology to identify close contacts and provide them with information on quarantining, monitoring symptoms, and getting tested. A webpage will launch on Dec. 23 that state residents can access for more information.
  • How can I get the app?
    • To help stop the spread of COVID-19, the app needs to be enabled and running on your smartphone before any exposures occur. State residents can get the app:
      • iPhone users can enable the app in their phone settings and make sure Bluetooth is turned on.
      • Android phone users can download the app in the Google Play store and make sure Bluetooth is turned on
    • Please note that the app is available for use by Wisconsinites who are 18 years of age and older.
  • How does the app help stop the spread?
    • WI Exposure Notification allows users to be quickly notified that they were in close contact with another individual who has tested positive for COVID-19. This will support Wisconsinites in our communities to take preventive measures like self-quarantining and getting tested, which will reduce the chance they will infect others. This all contributes to slowing the spread of the virus throughout the state.
  • How does the app work?
    • The WI Exposure Notification app does not use, collect, or store any GPS data or personal details. Instead, it uses Bluetooth technology to anonymously share Bluetooth keys with other smartphones using the app nearby. All people in Wisconsin who test positive for COVID-19 and have activated the app will receive a text notification with a link that will enable them to share results. To share results, users are required to indicate consent through the app and by doing so, the person who tests positive anonymously notifies devices their phone has shared Bluetooth keys with during the period of time they may have been contagious. For the app to work properly, Bluetooth must be enabled on the device, and the WI Exposure Notification app must be downloaded and/or enabled before you receive a positive test result or have an exposure.
  • How is privacy protected?
    • Users must be 13 years or older to use the app. The technology does not provide your identity to those identified as close contacts. The app uses Bluetooth, not GPS, technology, so your location is not The technology is built on non-identifiable Bluetooth signals that indicate proximity and protect people’s privacy. If you test positive, your name is not shared with any of your identified close contacts.