Essential Chinese Pinyin description

There are about 110 Chinese pronunciations (pinyin) that covers about 75% of words.
This App contains top 40 popular Chinese Pronunciations and their 4 tones (tone 1-4) (if any).
✔ Tap on the pinyin to listen to the pronunciation.
✔ Loop listening on whole list or single pinyin.
✔ Work offline.
✔ Hide items that you become familiar.
✔ Random Quiz on listening.