ひとりでがんばりマスター

ひとりでがんばりマスター is an education app by 株式会社 久野泰可教育研究所 with 10,000+ downloads (about 15K estimated). +27 installs in the last 7 days. Released Jan 29, 2017. Install growth, rank history, SDKs and ad networks.

From the store listing: “Supervised by Koguma-kai. Early childhood learning that fosters listening and thinking skills.”