Only the current version so far — new entries appear as the app ships updates.
Japanese Grammar Handbook is a books & reference app by LearnPlayVerse with 50+ downloads (about 73 estimated). +2 installs in the last 7 days. Released Nov 17, 2025. Install growth, rank history, SDKs and ad networks.
From the store listing: “Smart N5-N1 learning with quizzes & AI for deeper learning and longer retention”
