I have purchased the physical books but I don't have a cd player on my laptop. So i bought this to be able to listen to the audio files. Unfortunately, the audio doesn't work immediately on the app. You have to restart your tablet and then you should be OK. I like the app, but it could be designed better, preferably using android design language, making the menu buttons easier to use. Plus, there is no help on the website on how to fix this problem. I'm using a Nexus 7 (2013).
The app do not work with the 4.2.2 update on the galaxy note 8.0 please fix the problem or return my money back