Page number
As a Brazilian living abroad, I find this app a good source of books in Portuguese, especially the ones in psychology. It's good to have a library in Portuguese with me, on my phone, at a reasonable price. The audiobooks collection in Portuguese is also pretty extensive. I couldn't find page numbers in the books I want to read, and I don't know if it is just me or if the app doesn't provide that info. It would be important to know the length of the book before start reading it.