Instacast 4 [$1.99] is an app that puts all podcasts in one easy to get to place. It is made to run in the background.
Pro Minimalist UI
Instacast has a uncluttered, easy to use interface.
Pro Playback settings can be adjusted for each subscription
You can adjust playback speed on a per subscription basis.
Pro Quick access to all unplayed podcasts
Swipe from the left edge of the screen to access shortcuts, including a shortcut for all unplayed podcasts.
Pro Custom bookmarks
You can set bookmarks within an episode to help easily find specific parts of an episode later.
Pro Auto-downloads podcasts
Instacast can automatically download new episodes and it allows you to adjust when those episodes should be downloaded, how long should they be kept and what general playback options should be set.
Instacast is no longer available or under development.