The app is designed specially for playing audio books.

You have to manually download the books and place them in subfolders under the "My Audiobooks" folder on your phone.
Every book must be in a separate subfolder, even if it consists of only one file.
In Library→Settings→Root folder select the "My Audiobooks" folder.
Once finished, don't forget to press the "Update" button at the top of the Library window.

First 30 days Full version. Later - Basic version.
Features:
+ Playback speed control. It may be useful if narrator speaks too slow or too fast.
+ Classification of books (new, started and finished) allows you to understand at glance what books have been finished, what you are reading now and what are new).
+ Downloading cover from the Internet brings more life to the book than just blank general cover.
+ Bookmarks allow you to mark interesting moments in the book.
+ 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 allows to return to the previous playback position in situation when you accidentally hit Next file or other button.
+ Chromecast support allows to listen the book on full size speakers.
+ Application Widget. Allows you to control the player from the home screen.
+ You don't have to finish one book to start another. The progress is saved independently for all books.
+ NO ADS!

To purchase full version press: menu--Help--Version tab.
It is a one time purchase. Not a subscription.

Many thanks to people who left comments and suggestions.
If you have something that doesn't work please write an email instead of leaving a comment.

Version for Android 4.4 - 5.1:
https://drive.google.com/file/d/159WJmKi_t9vx8er0lzTGtQTfB7Aagw2o

Version for Android 4.1 - 4.3:
https://drive.google.com/file/d/1QtMJF64iQQcybkUTndicuSOoHbpUUS-f/view?usp=sharing

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

1. İndirme Sayfasına gitmek için indirme düğmesine tıklayın.

2. Normal APK Dosyası için dosyayı doğrudan indirebilir veya Kurulum Aracımızla dosyayı hızlı indirmeyi seçebilirsiniz.

3. XAPK veya BAPK gibi özel dosyalar için, dosyayı Yükleyicimiz ile hızlı indirmeyi seçmelisiniz.

4. Dosya indirmeyi tamamladığınızda telefonunuzun dosyayı bilinmeyen kaynaktan yüklemesine izin vermelisiniz.

+ Now the app ignores files placed in the trash.
Such files have a name starting with .trashed-

+ Added subtitle start time when searching on the Subtitles screen: menu--More--Subtitles.

+ Added Settings--Playback--Force exit.
It allows to exit the application after a long period of inactivity.

+ Fixed chapters encoding for some mp3 files.

+ If you have a Full version then you can open menu--More--Subtitles in the Player window.

+ Increased *.srt subtitles font.