CastCenter is a smart, well-designed and yet powerful podcast player for Windows Phone 8.1, which offers the following features features
* stream episodes or download to listen while offline
* download new episodes automatically when they become available, even when the app is not open
* set global and per-podcast settings
* create custom playlists of your favorite podcasts that update automatically when new episodes become available
* access to the whole iTunes podcast catalog
* adjust the playback speed of your audio or video podcasts
* turn on Sleep Timer to automatically stop playing a podcast while listening in bed
* quick sync thanks to a server-based parsing
* import and export OPML files
* ask Cortana to play specific shows by name, like “play TEDTaks”
The app is free with limitations. You can unlock everything with a 2.99$ in-app purchase
More information on here.
You can click here to download CastCenter for windows phone 8.1.