BookPlayer is an iPhone app developed by Alevtina Liubimova, available for free in the Education & Reference category under Books. It is specifically tailored for audiobook enthusiasts, offering a seamless experience when listening to audiobooks in MP3, MP4, M4B, and M4A formats on your iPhone or iPod Touch.

The app focuses on simplicity and convenience, aiming to enhance the audiobook listening experience. BookPlayer supports various audio formats, excluding files with DRM protection, and features functions like automatic bookmarking, quick navigation within audio files, headset playback control, and integration with Control Center and lock screen for easy management. Additionally, it offers a sleep timer with customizable time intervals or until the end of a chapter.