Will this work for people in the USA? Anyone recommend a good one like this for US Users?
Sure wish there was just a universal COVID-19 tracing APP that you can install and use anywhere in the world. Since it's all bluetooth talking it should be limited to the people you come into contact with in your area. USA is way behind on these types of apps. like asked above, maybe can be used generically?
Yeah as long as you can download another state’s app, I see no reason it wouldn’t work.
I have it on my phone now, no issues. I'm wondering if it will do the job. I am thinking in therory, it should.
The problem is, you need a central agency that maintains the database of identifiers that are associated with positive tests (this is relatively easy)...
AND that agency needs to be a gatekeeper for adding identifiers for positive tests into that database - you don’t want anyone to just be able to tap a button in the app that says, “yep, I’m infected!”, because a surprising number of idiots will do do “just for fun”, or “to see what would happen”, or because they actually want to damage the system so that they can then say “see, the system doesn’t work.”
So, you need some sort of lock in the app that requires authorization to open, in order to say, “yep, I tested positive”, so people don’t trigger it on a whim. One of the most commonly discussed methods (though certainly not the only one that would work), is to supply the lab/agency that gives you back the test results from your COVID test, with software they can use to generate a one-time-use QR code to open that lock (if your test is negative, they don’t give you a code). So, you get the test back, and if it says you’re positive, then you open the app and point the camera at the QR code that you were given along with your positive result, and then the app talks to the central database and submits the anonymous random identifiers your phone has broadcast over the past few weeks, to add to the database.
(And everyone’s phone periodically downloads that database, and compares the list of identifiers your phone has seen nearby against the ones in the database, and if there are any matches, it lets you know you may have been exposed, and gives you any country/state-specific next steps you should take.)
So the agency that controls the database of identifiers for an area needs to have some connection with the lab or agency where you got your test. If you live in a different country, you’ll be able to see that you are not known to have come into contact with infected people
in the other country, but that tells you
nothing about coming into contact with infected people
in your country. It’ll probably give you a false sense of security, if anything (“oh good, no alerts”), when you
can’t get any alerts for anyone nearby, only those from the other country.