Listen to Ketones, The Fourth Fuel: Warburg to Krebs to Veech, the 250 Year Journey to Find the Fountain of Youth by Travis Christofferson

Sugar Apple

This app is a must-have for any book lover on the go – it's my daily companion. User-centric audiobook joy – this app's ease of use is a true marvel.

General Broomdog

Audiobooks have become my favorite workout companions, making exercise a breeze. Effortlessly enjoying audiobook journeys – this app's ease of use is a winner. ListenBook's compatibility with CarPlay and Apple Watch enhances my audiobook experience during daily activities. I've never experienced such silky-smooth playback even with high-quality FLAC files.

ChatterChampion

This app has made me appreciate the art of storytelling even more. The ability to adjust playback speed is a game-changer for faster or more immersive listening. ListenBook's dedication to enhancing the audiobook experience has made it my preferred app for listening to content on the go.

CZR

I appreciate the minimal ads – it's all about uninterrupted enjoyment. Kudos to the developers! ListenBook's compatibility with CarPlay and Apple Watch makes it a versatile companion for my daily activities. ListenBook has redefined my audiobook experience. It's a true companion for all my literary adventures. This audiobook performed its function without excelling. The narrator's delivery was straightforward and easy to follow, though lacking in dramatic flair. The recording quality was decent with only occasional minor inconsistencies in volume. An acceptable but forgettable listening experience.

Heaven Sent

Kudos to the developers for making this app iOS 16 optimized. It runs like a dream! Automatic metadata extraction keeps my library organized. It's a time-saver!

New York Mood

I'm rediscovering my love for literature through this app – it's revitalizing. 🚶‍♂️🌟 Strolling through stories on a lazy afternoon – this app is my relaxation buddy! 🏖️🎧 ListenBook's tone adjustment feature in the Pro version is a creative tool that adds a fun twist to my audiobook journey. ListenBook has completely changed how I enjoy audiobooks. The app is packed with features like customizable skip intervals, playback speed, and sleep timers. The interface is clean and easy to navigate. Five stars!