It’s AirGuard, it lets you ping AirTags and some other cool features, it’s always a good app to have.
Just in case you didn’t know, Voyager is also available as iOS app here
DD-MM-YYYY with numbers is confusing for some people, I think either make it changeable in settings or use words (like August 5, 2023)
In the US it’s M because “users interact”
This app is actually amazing! Heard about it from a friend, was kinda skeptical to try it, but now here I am, posting this comment from Infinity.
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If you mean making the airtags beep by “connect” then yeah, it can. It can’t link to an icloud account though.