a.) can do things without switching apps. (?!)
b.) uses QR codes (invented by Japan, popularized by Japan)
c.) pay things on phone (invented by nokia, popularized in europe)
and the dominance confirmed by
a.) a single quote from kik founder (who is trying to convince people qr code is...good?)
b.) bigger mobile user base (well of course, they have more people)
c.) uber lost in china (if you're a foreign company in China and you haven't learned yet Chinese government only lets Chinese companies win, then...)