October 28, 2020 | Number of The Day
Downloads of COVID Alert NJ smartphone app

New Jersey is putting smartphones to work to help reduce the spread of the coronavirus with COVID Alert NJ, a free and secure mobile app that anonymously alerts users if they have been in close contact with someone who has tested positive for COVID-19. 

The app can be downloaded from Apple’s App Store or Google Play.

COVID Alert NJ uses Bluetooth to sense close contacts with other app users who are within 6 feet for more than 10 minutes. If a close contact is detected, your phone exchanges a secure random code with the close contact’s phone. (Your name and location are never disclosed.)

If you test positive for COVID-19, a public health representative will call and ask if you’re willing to anonymously notify your close contacts by uploading your app’s close-contact codes. On a daily basis, the app also compares your list of close contacts to the list of codes associated with positive COVID-19 app users. If there’s a match, you will get an exposure alert along with appropriate next steps.

The app’s effectiveness increases as more users download it.

COVID Alert NJ is free. More information is available on the New Jersey COVID-19 Information Hub.