Generally speaking, this app is great. However, there is a bug where occasionally after I pause my book for a minute and press play, it jumps back to a previous spot in the chapter no matter if I go forward again or not. If I pause again it jumps back to the same spot. I only use one device for audible, so not a sync issue. The ONLY thing that fixes it is to completely uninstall and reinstall, a solution that audible seems content to keep as I've contacted support several times over the issue.