One of the many, many "great unknowns" of Apple's iPhone App Store is how the top-grossing list is calculated, specifically whether or not it factors in revenue from in-app purchases. While we could theoretically wait and see if, now that they too can use in-app purchase, a free app makes its way up the list, the folks at Freeverse wanted an answer now. And they think they've found it:
Top Grossing Freeverse Apps are Skee-Ball (#17), Flick Fishing (#97), and Top Gun. Now, interestingly, the Top Paid Apps Chart lists Top Gun as #60 and Flick Fishing as #72. How does this happen? The games are priced the same...but Flick Fishing features DLC. This leads us to conclude that the Top Grossing Apps list seems to include In-App Purchases in its calculations.
What if anything does this mean for developers? Will they be able to land on the Top Free and Top Grossing lists at the same time now? Heh. The App Store doesn't give away too many secrets at any one time..