I won’t say that this was the best app for kids for their study but if look towards the solutions of the text book questions, then definitely it is the best as it has presentable answers written and also the notes of the chapter are quite in brief but they are given in a very easy language through which kids can learn even faster. Also, the important questions are mentioned with respective marking scheme which is a boon for kids. But, the conceptual understanding could have been more better in it.