They are claiming 5 times more sales, so are they saying that Microsoft take the same cut as Apple? Also the app was language learning app for (presumably) the very young, how likely is that these youngsters would have (extended access to) an iPhone? I can easily imagine giving the kids a Windows phone as a play thing because you didn't care if it got damaged or not.

So isn't piece this just saying putting your product in the right marketplace results in more sales than putting it into the wrong marketplace?