Young Lan, do parents charge?

No charge. Qingyulan Education is a mobile communication platform for teachers, students and parents. No charge. Beijing Qingyulan Education Technology Co., Ltd. is a large-scale educational auxiliary publishing company integrating educational research, publishing and distribution. There are fruitful research in teaching materials and methods, students' learning methods, college entrance examination questions, mental health, teaching and examination information and so on. Qingyulan APP is a college entrance examination research institution based on the college entrance examination and provides teaching services.