Only the current version so far — new entries appear as the app ships updates.
立教電卓 is a tools app by Suits with 1,000+ downloads (about 3.4K estimated). +3 installs in the last 7 days. Released Jul 16, 2013. Install growth, rank history, SDKs and ad networks.
From the store listing: “Us with the calculation of Rikkyo and the year.”