The Japanese App Store is extremely profitable. Dispite only a quarter of iOS devices used in the country, top grossing apps in Japan has not much difference in generating money compared to the U.S (Look at this Article). The most profitable game in Japan is not from Gree nor Mobage.It's Puzzle & Dragons, produced by GungHo Online Entertainment. 
パズドラ0(image via Gungho)
続きを読む