I believe Apple's userbase may also exceed Sony, Microsoft and Nintendo combined. The interesting thing about this is whether or not Google is in the same ball

I believe Apple's userbase may also exceed Sony, Microsoft and Nintendo combined. The interesting thing about this is whether or not Google is in the same ballpark. I have not worked on mobile games, so maybe someone in the know can educate us. Is the Play Store comparable in revenue for a given game ? Anecdotally, I have heard not. But with in-app purchases being more common now I would have expected that to equalize.