CBSE stands for Central Board of Secondary Education - which is India's national level board of education for both private and public schools, regulated by the Government of India. Class 7 - in relation to CBSE - contains the basic fundamentals; the subjects include Science, Maths, Social Science, Hindi, and English. 

This app helps Class 7 students prepare for the exams by providing NCERT books, solutions, notes, exemplar books, exemplar solutions. NCERT points to The National Council of Educational Research and Training an autonomous organization developed by the Government of India. 

Relating to CBSE, you will find value-based questions, the CBSE syllabus, and revision notes. You can also prepare better by taking the MCQ test in this app (it is timed).