The only occurrences of the the word "Android" are in that paragraph:

>More apps than Android: Apple's App Store has more than 425,000 apps. The Android Market has 200,000. In May, Google (GOOG) announced its 4.5 billionth app download, compared with Apple's 15 billion as of July 7.

Where do you read that iOS users were paying more than Android users in that article?

That article is from 2011... quite a lot has changed since then.