Hoppii アプリ is an independently developed application designed to enhance the user experience of Hoppii on smartphones. It aims to address the inconvenience of using the learning support system on mobile devices. Users can manage tasks separately from Hoppii, marking unrelated tasks or those to be submitted elsewhere as complete. The app allows users to view and download task details and attachments, displaying task deadlines uniformly at 23:55 on the previous day to reduce the risk of delays.

In addition to task management, the app also offers features to display announcements and attachments, access course materials, view the Hoppii schedule page, and check the reservation status of classrooms in Tamachi, providing a user-friendly experience for those interested in checking classroom availability.