Only the current version so far — new entries appear as the app ships updates.
麻雀.AI 得点君~カメラをかざしてアガリを自動識別~ is a tools app by i7y with 10,000+ downloads (about 21K estimated). +3 installs in the last 7 days. Released Oct 28, 2018. Install growth, rank history, SDKs and ad networks.
From the store listing: “10,000 downloads! Take a picture of the rising tiles of mahjong and use AI to identify the tiles and calculate the score.”