As a student of the West Bengal board, the best learning app for class 9 is Tutopia. The various features like short animated video tutorials, live classes, and instant doubt resolution help you to be exam-ready. The audio-visual classes give a clear understanding of the topics and the PDF notes only supplement that. If your aim is to excel in your school examinations, install the app today.
https://www.tutopialearningapp.com/online-classes-for-class-nine