Company xie liuqiang created these great apps:
Learn Chinese by TalkingLearn, HSK Helper - HSK Level 1 Word Practice, HSK Helper - HSK Level 2 Word Practice, HSK Level 3 Word Practice, HSK Helper - HSK Level 4 Word Practice, HSK Helper - HSK Level 5 Word Practice, HSK Helper - HSK Level 6 Word Practice, 魔力书屋 - 有声英语绘本的平台, 单词帮 - 背英语单词的小帮手, and others..
