Hi guys i am well and hope that you will be same there.
1)Doubtnut app is very buseful app for students of class 1st to 12th.
2)In this app you also see your studies related videos and you also meet everyone your friends.
3)this app a question’’’’s solutions app , when you click your question’’’’s pictures and send you get your solution.
4)I also use this app for preparing my exam .
So i recommend my friend and classmates for using this app.