Look Up Words: Use the built-in dictionary in the Kindle for Mac app to look up the definition of words without interrupting your reading. You don’t need to own a Kindle to use the app, but if you do, Whispersync also syncs your Kindle books between your apps (including the Kindle for Mac app) and your Kindle devices. Sync to Furthest Page Read: Whispersync technology automatically syncs your books across apps, so you can start reading on one device with the Kindle app installed, and pick up where you left off on another device with the Kindle app installed. Shop for books in the Amazon Kindle store. Full screen reading view, color modes, and brightness controls offer an immersive reading experience. Create new highlights, notes, and bookmarks and manage those created on your Kindle for macOS. Automatically synchronizes your last page read and annotations between devices with Whispersync. Access your Kindle books even if you don't have your Kindle with you. Get the best reading experience available on your Mac.