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. The United Kingdom App Store is one of Europe's most active app markets, reflecting a highly engaged and diverse user base. 1 of these 50 apps is a newcomer since the previous update; Kalam: Learn Arabic made the biggest jump, climbing from #46 to #35; Duolingo: Language & Chess holds a steady position at #1, where it has charted for 81 days.
