If you do the majority of your news reading on a tablet or smart phone, Flipboard could fill the Google Reader void. The app’s interface is set up like a magazine and the formatting is every bit as glossy. You can flip through both RSS feeds and updates from Twitter, Facebook, and Tumblr.
Is there an app? Well, for Flipboard, there are only apps. There is no desktop version. Flipboard is Apple- and Android-friendly.
Cost? Free.