1, reading is different: Black Cat English focuses on speaking and life language, Blackbriar is more interesting, most of them are some current English news content.

2, the appearance of different: black Bolin appearance is purple and black, the appearance will be more conspicuous.

3, the content is different: BlackBerry program involves city, animals, festivals, stories, camping, birthday parties and other 22 topics of graded reading. Black Cat English covers a wider range of topics than BlackBerry.