Use the COVID-19 Exposure Notifications System on your Android phone

support.google.com
3 min read
fairly easy
To help understand whether you've been exposed to someone who reports having COVID-19, you can turn on Exposure Notifications. If you change your mind, you can turn it off. To use the system, you nee
To help understand whether you've been exposed to someone who reports having COVID-19, you can turn on Exposure Notifications. If you change your mind, you can turn it off.

To use the system, you need to download your public health authority's app.

If you have COVID-19, you may share that info with the app to help alert the people you've been in contact with.

If you've been exposed to someone who has shared they have COVID-19, the app will notify you and give you further instructions.

What you need to get started

Download an app from your region's government public health authority. To find out if an app is available, check with your government.

Turn on your phone's Bluetooth. Learn how to turn on Bluetooth.

Turn on your phone's Location setting. Learn how to turn on Location. The system uses this to scan for Bluetooth signals. The system does not collect or track your location.

How Exposure Notifications work

When you turn on Exposure Notifications within an app from your region's government public health authority, your phone shares random IDs with other nearby phones that also have turned on the Exposure Notifications System.

Throughout the day, your phone and the phones around you exchange random IDs. When your phone detects a random ID from another device, it records and stores the ID.

If someone reports having COVID-19 and their ID is stored on your phone, the app will notify you of next steps to take.

How the app may…
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