#1Mandarin Pinyin Test Helper by Tsz PoonLearn and Practice PinyinEditor's Choice📚 Education0.0(0 ratings)Free
#2Keys Chinese and Putonghua XR by Oxford University Press (China)Strong Contender📚 Education0.0(0 ratings)Free
#3AI 小學普通話 by Chinese Education Services LimitedWorth Considering📚 Education0.0(0 ratings)FreeIn-App Purchases