The state of California will have its Exposure Notification system on the iPhone rollout today. Other states and countries already have the Apple and Google exposure platform.
California Notify will utilize the Exposure Notification Express technology Apple created and introduced in iOS 13.7. Those in California can activate this by going to their iPhone’s Settings, then Exposure Notifications. From there, they must choose US then California to opt in. Downloading and installing an app is not needed.
Android users in California will need to download an app which will be launched on the same day.
UC San Diego Health is the developer of the Exposure Notification in California and will be the provider of support, education and infrastructure as well.
CA Notify will require iOS 13.7 or later.