Definitely helped!

Great app. Worth the upgrade. If youre having problems catching the pinyin in class, these drills will help immensely. If you cant hear the tone properly, your intonation might be off. Mine sure was. The only reason why I didnt give this 5 stars was because I would like see it more customizable to test my selection of initial sounds against other initial sounds and having the ability to test myself on the ones I frequently miss. Yes, one can review the list of past word, correct or wrong so why cant those wrong words be retested? I must say that how the app groups like sounding initial words is incredible.

4Tones2much about Pinyin Trainer by trainchinese