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 Germany App Store and updated every day. 4 of these 50 apps are newcomers since the previous update; Udemy Online Video Courses made the biggest jump, climbing from #39 to #26; Duolingo: Language & Chess holds a steady position at #1, where it has charted for 81 days.