Editors' note: This review was updated March 25, 2013, with information on how to subscribe to third-party podcasts.
Apple's Podcasts (for both iPhone and iPad) gives you a standalone app that lets you subscribe to, play, and discover podcasts from any category. The app got off to awith several missing features, but a new update might give podcast fans some relief.
The Podcasts interface is easy to navigate. You have a Store button in the upper left where you can search the iTunes App Store for podcasts by category, most popular, and other criteria (the same way as if you were searching for podcasts in iTunes). But if you just want to see podcasts for audio or video, or just the most popular podcasts, you have buttons across the bottom to switch between each type. When you select a podcast, you can see the latest downloadable entries or subscribe to your choice, and either stream it or download it for later listening offline.