Only the current version so far — new entries appear as the app ships updates.
大きな文字のスケジューラ(試用版) is a lifestyle app by フロッグワークス with 500+ downloads (about 794 estimated). Install growth, rank history, SDKs and ad networks.
From the store listing: “A schedule book application that displays large and easy-to-read characters.
You can check and register memos with a simple operation.
It also has an alarm function (notifies by sound and vibration).”