Only the current version so far — new entries appear as the app ships updates.
斎宮歴史博物館 斎宮案内 is a travel & local app by MUGENSHA,Inc. with 1+ downloads (about 3 estimated). +2 installs in the last 7 days. Released Aug 14, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “[Saigū Historical Museum Official App] A free guide app to help you enjoy the Saigū Historical Museum and the Saigū Ruins, a national historical site! Audio guides are also available in Japanese, English, Chinese, and Korean.”