Only the current version so far — new entries appear as the app ships updates.
通知バーで予定をお知らせアプリ!! is a tools app by takencoo with 1,000+ downloads (about 2.8K estimated). Released Jan 13, 2016. Install growth, rank history, SDKs and ad networks.
From the store listing: “We will inform you using the notification bar status bar your appointments.”