2026 State of Mobile is Live!

In the dynamic landscape of education and training in Japan, several brands have emerged as leaders in Q4 2024. This article delves into the performance of Duolingo, Udemy, and Quizlet, highlighting their audience trends, app engagement, and advertising strategies. Sensor Tower's comprehensive data provides an unparalleled view of these brands' cross-platform user behaviors.
Duolingo is renowned for its innovative language learning solutions, accessible through its website, duolingo.com, and the Duolingo - Language Lessons app.
Audience Trends: Duolingo.com saw a significant increase in visits, peaking in October with over 27M visits. The monthly true audience steadily rose from 3.1M in July to approximately 4.3M in December.
App Engagement: The app's monthly active users grew from just over 3M in July to more than 4.1M by December, underscoring its popularity in the mobile market.
Ad Spend & Channels: Duolingo's monthly advertising spend varied, with a peak in October at around $135K, predominantly through platforms like YouTube and TikTok. Impressions followed a similar trend, with significant visibility achieved in October.
Udemy is a leading global marketplace for learning and instruction, accessible via its website, udemy.com, and the Udemy Online Video Courses app.
Audience Trends: Udemy.com experienced a steady increase in visits, culminating in December with over 12M visits. The monthly true audience showed fluctuations but remained around 250K to 270K throughout the quarter.
App Engagement: The app maintained a stable monthly active user base, with active users hovering around 120K to 130K.
Ad Spend & Channels: Udemy's monthly ad spend peaked at approximately $486K in November, with a strong presence across Facebook and YouTube, generating substantial impressions.
Quizlet is a popular study tool offering flashcards and learning games, available via its website, quizlet.com, and the Quizlet: Study with Flashcards app.
Audience Trends: Quizlet.com maintained a stable visit pattern, reaching over 4.4M visits in December. Monthly true audience figures fluctuated slightly, with a peak of around 370K in October.
App Engagement: The app's active users remained consistent, averaging about 240K to 270K monthly.
Ad Spend & Channels: Quizlet's monthly ad spend was minimal, with the highest spend in October reaching just $671. The focus was primarily on Instagram and Facebook, achieving modest impressions.
The Q4 2024 data reveals that Duolingo, Udemy, and Quizlet have each carved out significant niches within Japan's education and training sector. Sensor Tower's data underscores the importance of cross-platform strategies, providing critical insights into user engagement and advertising efficacy. With access to Sensor Tower's Web Insights, Pathmatics, and App Performance Insights, stakeholders can make informed decisions to further enhance their digital presence.
For more detailed insights, explore Sensor Tower's offerings to understand the complexities of cross-platform user behavior and advertising impact.