Let me tell you about this really cool app; bookshelf- your virtual library. So this is an app that helps us to catalog all of our books, we only need to scan the ISBN number of the book, then the details of that corresponding book will appear on our screen, awesome! We could also input the book data manually and we can also put a special note about that particular book.
After I spent a whole day rearranging my book shelf, with the help of this app (I scanned all the books ISBN one by one.i finally found out I have 200ish books. A very modest number compared to the gigantic library of a friend I know.