Got it: You meant to type USB
but typed Ultimate
-- perhaps because it turns out you're not alone.
I point this out not to be a vast hulking dink but because (1) there's an app called "Ultimate Audio Player," which people might mistakenly download instead, and (2) I googled the name "Ultimate Audio Recorder Pro" and found threads like this one
, in which Head-fi members used the incorrect name for the app -- and one of them happens to be NZtechfreak -- a dedicated cataloger of USB DACs
Note, too, that user phi303 had the same experience I did: S/he looked for Ultimate Audio Player Pro on the Playstore and found nothing. It's interesting that that's happened more than twice.
For the above reasons, I think it's worthwhile for people to know we're talking about USB Audio Player Pro sans the word Ultimate
. Since I wasn't familiar with that UARP offshoot until you made me aware of it, I wouldn't expect every DAC user to know it either -- not automatically, at least.
Both UARP and UAPP use drivers that bypass the limitations of source software, which is why I suspected they had to be the same software with an incorrect initialism or variants of the same original software.