Only the current version so far — new entries appear as the app ships updates.
WaWaYaYa JoyReader Pro is an education app by 创而新(北京)科技有限公司 with 10,000+ downloads (about 43K estimated). +101 installs in the last 7 days. Rated 2.4 from 126 ratings. Released Jun 25, 2019. Install growth, rank history, SDKs and ad networks.
From the store listing: “Learn Chinese, learn Chinese characters, and speak Mandarin, right here at JoyReader! WaWaYaYa JoyReader Pro-focus more on Chinese learning”