The Top Grossing chart ranks apps by total revenue — combining paid downloads and in-app purchases — making it the best measure of which apps are actually making money. These rankings are sourced directly from the Japan Google Play and updated every day. 3 of these 50 apps are newcomers since the previous update; Todaii: Learn Japanese N5-N1 made the biggest jump, climbing from #41 to #34; Duolingo: Language Lessons holds a steady position at #1, where it has charted for 125 days.