This lightweight application allows you to listen to audio files on your device.
This app is free. You get a full license for the first 30 days.

General features:

+ Chromecast support.
+ audio file support: * .mp3, * .m4a, * .m4b, * .awb, * .ogg, * .wma, * .aac, * .wav, * .flac
+ Fast forward and rewind at the touch of a button
+ Autoplay history
+ Widget to control playback from the home screen
+ Playback speed control
+ No advertising!

Features optimized for listening to audiobooks:

(the following features distinguish this app from usual audio players)
– Organize your books by status: New, Now reading, Read
– You can switch between multiple books automatically keeping the progress for each book. So you don’t have to finish listening to a book to start another
– Manage your list of characters to better follow the story
– Bookmarks with notes to memorize locations in the book
– Download covers from the Internet
– Define a home folder. So you can listen to your books with Smart AudioBook Player and listen to your other audio files with another audio player.

Many thanks to everyone who left a review. Your suggestions for improvement or new features are welcome.

If you find a malfunction or have a question about the app, please email me rather than leaving a comment.
If you like this app and can help with its translation, please email me.

To buy the full version (or restore it after reinstallation): go to the Help -> Version menu.

Your device must be connected to the Internet.
The full version costs $ 2.

Version with old icon:
https://drive.google.com/open?id=1lDjGmqhgSB3qFsLR7oCxweHjnOLLERRZ