A free program for Android, by Student Factory.

This app is specially designed for students of BSEB, UP Board, and CBSE, as well as for students of other boards in India. It provides solutions to all chapters of Class 9 Maths in Hindi. This is an offline solution app, so you can use it in your pocket anytime, anywhere. You can use this app for studying and preparation of exams. It is useful for students who are studying in Class 9 and for those who are going to appear in the Class 9 exams. It provides the solutions to all chapters and helps you in solving the questions in the correct way.