This app contains basic concepts and formulae of the topics in calculus, which where taught to me by my professor and you will not find anywhere in standard textbooks. I have used appsgeyser to make this app. It can help as beginners, as well as for quick revision. It is ideal for mathematics lovers, especially calculus. It contains various chapters in form of books, but are precise and in very easy language. Internet not required for my books (as there are other books not written by me, published by appsgeyser)
Thank you for reading.