Only the current version so far — new entries appear as the app ships updates.
單字查克拉 - 英文7000單字輕鬆學 is an education app by TSAI MENG CHIA with 10,000+ downloads (about 27K estimated). Released Jan 6, 2017. Install growth, rank history, SDKs and ad networks.
From the store listing: “Quick and easy to learn 7000 words
The word back so fast!”