Crashing, wont hold place on digital audiobooks, freezes

This COULD be a good app...if it would work as advertised. I am a middle school librarian, and when I tried using this for my audiobook checkout, the app crashed every other time I used it. The app doesnt save your place, and the chapter fast forward feature will not work. In fact, my book, though downloaded, would not advance past chapter 1, either with the Contents or the chapter forward feature. You all MUST fix this, stat.

Wcope about Destiny Discover