Only the current version so far — new entries appear as the app ships updates.
しろたん電卓 is a tools app by 株式会社クリエイティブヨーコ with 10,000+ downloads (about 31K estimated). +11 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “A cute and moving calculator for the baby harp seal "Sirotan".
When you operate it, Sirotan blinks and smiles!
You can use the memory function and cancel the calculation.”