I tried the app and all it does is give you a general overview of what the Dewey Decimal System is an how to rate a book. What I had wanted however is for it to tell me what my book was rated . I believe it is non fiction but there is no information on how to tell or rate. Not very helpful.
I like this application, it' s too useful to me
Good but it really needs search options
It has ads, but not a searchable book. Don't recommend.
But there should be a search option and sub menu.