
If you’re using the Kindle app, chances are you’ve already built up a library of titles, and are unlikely to start buying all your literature from Google Books or iBooks instead. To be honest, Amazon doesn’t need to give you the hard sell. The library screen features a small shopping cart link in the top right, and you’ll see a list of suggested titles when you finish a book, but there are few other prompts to purchase.

It's particularly special and useful because it allows you to easily edit PDF text, images, links, and outlines. Perhaps most surprisingly, the Kindle app for PC and Mac doesn’t give you the hard sell by thrusting store links under your nose. PDF Expert is one of the best PDF reader apps for Mac.

The New Oxford American Dictionary is the default, but 13 others are available in the settings, covering several languages. The Kindle desktop software also provides dictionary definitions. Unlike most free ebook readers, Kindle for PC and Mac supports annotations (both in a notebooks and as flashcards) and highlighting, making it a good choice for students. Kindle for PC offers a small but useful selection of customization options for easier reading The name may sound funny, but the app is excellent.
