Audible.com, owned by Amazon, is an online service featuring over 150,000 audio books (and other spoken word content). The Audible app delivers all of Audible.com’s content to you with a simple, clean interface while you’re in your car, at work, cooking, really whenever you’d like. You can browse Audible.com’s library, download new books to your account (Wi-Fi is a must when downloading), and, of course, listen to them all within the app. With a variety of features, including variable speed and button-free mode, there is simply no better way to access and listen to audio books out there. If you’re an Audible.com user, this app is a must-download immediately. If you aren’t, this app alone is a great reason to sign up!