hm I have a black KEYᴼᴺᴱ with AAQ302, never saw this app before and don't know what it should be for, why is not in the playstore?
It is an odd one. It was meant to be part of one of the updates (July I think). It appears as though not everyone got it. I know people who have a silver KEYone, purchased from the UK who did not receive the support centre.