Excellent Vocabulary help
The vocabulary lessons are excellent. Useful vocabulary, excellent help for tones.
PS: regarding the first commenter:
Reviewed on Apple Podcasts
a) It's helpful to have explanations in proper English, I can deal with his accented Chinese. Besides, the Chinese woman is the "real" teacher, he's more an assistant.
b) "native Mandarin speaker": if you see it that narrowly, only a Beijing Chinese would do. Everybody else (including the majority of Chinese) would not be a native speaker.