Or perhaps you discovered that there are more search engine marketers on Android...

biot on May 11, 2011 | parent | context | favorite | on: Apple's 30% vig for ebooks just killed the iFlow R...

Or perhaps you discovered that there are more search engine marketers on Android than on iOS. Or that your app has more visibility on the Android market. Or multiple factors unrelated to the average user's general app-purchasing habits.