德语单词训练营-背单词与复习 is an education app by Zhaya Deutsch with 100+ downloads (about 498 estimated). Released Apr 16, 2022. Install growth, rank history, SDKs and ad networks.
From the store listing: “Practice German vocabulary into your memory: do one set a day, combining multiple choice, spelling and review, create your own vocabulary book, and accumulate at your own pace.”