Platform: iOS, Android; Free
If you're an Audible.com user, the Audible app is a must have. Audible is a collection of spoken word books and newspapers, the perfect thing to listen to when you're laying out in the park or on that road trip. Didn't have time to read The Great Gatsby before the movie came out? Or want to listen to the Game of Thrones books before catching up on the season? This makes the process a lot easier, so why not have another excuse to be a little productive when you relax this summer?