Only the current version so far — new entries appear as the app ships updates.
Waculba (ワカルバ) is an education app by 株式会社 日本経営 with 10+ downloads (about 15 estimated). +4 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “A learning platform for staff in medical institutions and nursing care facilities. Training anytime, anywhere.”