Ab Player is an audiobook player designed to enhance the listening experience by offering convenient ways to save bookmarks and ideas. The app allows users to take voice memos, text memos, and interval bookmarks while enjoying audiobooks. It provides a seamless experience by enabling control through various methods such as Android Auto, Bluetooth headset, media keys, and the notification bar.

Users can track their progress and label listened parts on the seek bar, jump to the first not-listened position, and utilize the sleep timer with shake-to-postpone functionality. Additionally, the app offers advanced sharing features for various media types, an integrated video and image creator, support for chapters, and a low-energy screen with playback and bookmark controls. The app supports a dark theme and allows the use of a Bluetooth microphone for added convenience. With Google Play backup support, users can rest assured that their data will be preserved when reinstalling or migrating to a new device.