I had this set up the day it was available in my area. Never got an alert. I find it difficult to believe I wasn't "exposed" during the pandemic, so I assume this didn't really provide much value.
I'm originally from Brazil but I've been living in Poland for the past decade so I had the Polish app setup with Android covid notifications. The neat thing is that it doesn't matter as they all talk together due to how the protocol works.
I got a few notifications in Poland, and I also did travel to Brazil, and got notifications there too.
The app only works if enough people are in though, so if nobody uses then it won't work. Depends on the area, people, way of thinking.
I've never gotten an alert and I know I've had "exposures" in the past from work emails. Guess it's time to uninstall...
Too bad for the three persons that used it, including the Google QA team
They really did genuinely work with Apple to create a system that could track contact while also not making it really possible to track individuals.
