In July 2024, Duolingo was by far the leading language learning mobile app, grossing roughly 33 million U.S. dollars via in-app purchase revenues during the month. Babbel ranked second, with over 5.4 million U.S. dollars generated on the mobile app. While Duolingo adopts a freemium model and is essentially free for users, Babbel offers a limited free trial period before asking users to choose a subscription plan. iHuman, which aims to increase literacy and Chinese character-writing ability in children, generated in-app revenues of 840,000 U.S. dollars during the measured period.

As of August 2022, language learning app HelloTalk and Google's meeting point for schools Google Classroom were the educational app collecting the largest amount of data points. ClassDojo and popular language learning app Duolingo followed, collecting approximately ** different data points from global Android users.