is that globally or in the markets like US, i assume
it a lot closer in markets that have more hi end devices and disposable income.
but it is sure that apple customers are more used to pay for applications. that's something that i noticed like 8 years when i switched from windows to osx/macbook. while on windows you could find free basic utility software like rippers converters and so on, on macbook they usually where paid applications.
Amount of paying mobile users for both companies is clearly dominated by the iOS. About 1:5-1:10 ratio.