What's the Deal with Portland's Parking Kitty App?

“Imma park my car with this Parking Kitty app / Riding in the car with my cats while I rap / Easy to pay, no receipt, that’s a fact / Find us up in Portland that’s where we’ll be at” —Moshow the Cat Rapper, in a promo video (see below) that’s the app’s only advertisement so far
$33.5 m
The City of Portland’s parking revenue for 2016–2017 fiscal year
38,000
Total parking sessions in metered spaces purchased every day in Portland
20%
Portion of meter transactions using Parking Kitty as of April 2018
10¢
User-paid fee per Parking Kitty session, which goes to the app’s North Carolina–based developer
80,000
Parking Kitty app downloads in Portland since its launch
18,000
Views of Moshow the Cat Rapper’s Parking Kitty YouTube video as of April 2018