About this app
Learn kanji with Yookoso!, an app developed by faculty of the UC San Diego Kanji App Development Team. Download the course companion app today!
Latest release
What’s New
• You can now track your performance on the multiple-choice flashcard quizzes for each chapter and for each individual character on Yookoso! • User guide updated in app • Improvements in performance, stability and accuracy of information shown
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 2, 2026 · 10:36 AM Free