Does BBK charge for real-life tutoring?

As long as it is developed by BBK, it is free, but it does not include downloading in the app store.

be free of charge

There is a love counseling in the application mall, which is called the teacher's function, but it is not recommended. Calling the teacher now is a pit. You can't see each other. The teachers in the telephone teachers are basically college students and some part-time social workers, including high school students. There is still a time limit for calling the teacher. After the teacher has time, you are in class and studying at night. When you have time, the teacher is off work again, so you can't fool around.