NoteAway - NoteAway is the simplest, most convenient way to take quick notes on OS X.

LibriVox Audio Books Supporter - LibriVox Audio Books Supporter app comes up with an extensive collection of audiobooks through which you can search for your favorite book and listen to it in your native language right at your fingertips.

TakeNote - A web-based note-taking app with GitHub sync and Markdown support.

Speechy - Speechy is an app by Twelve Stars Software that comes up with features to help you in reading text in a variety of different formats such as pdf, txt, EPUB, webpages, and many others.

Pocket Notebook - Pocket Notebook is an app by Wolters Kluwer Health LRP that comes up with features through which medical students can clear all their doubts about medical terms right on their mobile phone screen.

Lithium: EPUB Reader - Lithium: EPUB Reader app allows users to read their favorite eBooks after importing it from the internal storage.