Canada launching national contact tracing app built with Apple-Google API
Canada will launch a nationwide contact tracing app using the Apple-Google Exposure Notification framework, Prime Minister Justin Trudeau said Thursday.

Credit: Apple
The Apple-Google Exposure Notification API exited beta in May. It allows public health authorities to build deeply integrated, cross-platform contact tracing apps to track and curb the spread of coronavirus.
The Canadian app was developed by Shopify, BlackBerry and the government of Ontario. As is required by Apple and Google, the app will be completely voluntary, will only store data in a decentralized manner and will be led by the Canadian Digital Service Initiative, iPhoneInCanada reported.
It will first launch in Ontario on a testing basis, before rolling out nationally in Canada.
Canada's announcement closely follows a similar one from the U.K., who said Thursday that they would ditch their proprietary system in favor of the Apple-Google framework. Other countries that have pledged to use the Exposure Notification API include Germany, Latvia and Switzerland.
Along with strict opt-in, privacy and data security policies for users, the Apple-Google API allows public health officials to build apps that can operate in the background. Apps built without the framework need to remain open to function properly.
As of writing, no U.S. state has developed an app using the Apple-Google API, although several have signaled that they plan to. Some states, like Utah, have opted for their own solutions with varying levels of privacy.

Credit: Apple
The Apple-Google Exposure Notification API exited beta in May. It allows public health authorities to build deeply integrated, cross-platform contact tracing apps to track and curb the spread of coronavirus.
The Canadian app was developed by Shopify, BlackBerry and the government of Ontario. As is required by Apple and Google, the app will be completely voluntary, will only store data in a decentralized manner and will be led by the Canadian Digital Service Initiative, iPhoneInCanada reported.
It will first launch in Ontario on a testing basis, before rolling out nationally in Canada.
Canada's announcement closely follows a similar one from the U.K., who said Thursday that they would ditch their proprietary system in favor of the Apple-Google framework. Other countries that have pledged to use the Exposure Notification API include Germany, Latvia and Switzerland.
Along with strict opt-in, privacy and data security policies for users, the Apple-Google API allows public health officials to build apps that can operate in the background. Apps built without the framework need to remain open to function properly.
As of writing, no U.S. state has developed an app using the Apple-Google API, although several have signaled that they plan to. Some states, like Utah, have opted for their own solutions with varying levels of privacy.
Comments
Then I thought about it. The virus really got going in March. That’s only three months ago. Three months to put together, test and debug, something like this is actually very fast.
There is quite a lot of development that could go into a Contact Tracing app that has nothing to do with the Apple Google API.
Look it up GoogleGuy
Regarding whether the app traces or "only" provides exposure notification: As designed, it only notifies users when they might have been infected by someone using the app who has been tested positive and has agreed to upload ephemeral IDs (EphIDs) that it broadcast during the period in which he was infectious to a central backend. The EphIDs are random messages that contain no data that can be traced to the operator of app. App installation discover whether their operators should be notified by downloading all new EphIDs and comparing it to a list of broadcast EphIDs that it has "heard". Each installation has saved enough data on the "contact" (i.e., EphID, signal attenuation and time epoch) to enable it to calculate an exposure risk. The Swiss app, at least, makes no effort, either to ensure that infected persons go into isolation, nor to advise health authorities about users who it has warned. This is by design. Read more about the app and D3-PT in the documentation on GitHub.
It's easy, all we have to do is use the right tech in a common-sense way. It's not rocket science. Simple-minded ideologues will never get it.
So out on this one too.
Maybe you better find a better search engine GoogleGuy