Smart AudioBook Player4.2.0

The app is designed specially for playing audio books.
Assumed that you have audiobooks and already copied them to your phone.
First 30 days Full version. Later - Basic version.
Features:
Chromecast support.
Playback speed control.
Classification of books (new, started, finished).
Download cover from the Internet.
List of characters. You can manually create a list of characters to easier follow the story.
Automatic pause in case you fall asleep. To continue playback just shake your phone.
Playback history.
Application Widget. Allows you to control the player from the home screen.
By specifying a root folder containing all your audiobook, you can exclude your folders which contains music and other audio files.
You don't have to finish one book to start another. The progress is saved independently for all books.
NO ADS!

To purchase (restore after reinstalling) full version press:
menu--Help--Version tab
Phone must be connected to the Internet.
Full version cost is $2.

Many thanks to people who left comments and suggestions.

Smart AudioBook Player 8.4.4

It is an app that lets you enjoy all your audiobooks in the easiest way possible. Comparative apps provide basically the same features as a standard music player but the smart audiobook player has a few special and interesting options. You can increase or decrease the speed with just a tap while you are playing an audiobook. Using this feature you can quickly skip any parts you039ve already listened to or just don039t want. You can do all of this right from your home screen thanks to the widget in the app.

as you'd expect, smart audiobook player remembers the exact place you left off listening to an audiobook. As a result you can have as many active books as you like and listen to any of them again at any time.

smart audiobook player is an excellent audiobook app that's compatible with mp3, m4a, m4b, awb, ogg, and wma formats.