Which podcast apps support private podcasts?

On iOS, these apps support private podcast feeds: Apple Podcasts, Overcast, Pocket Casts, Downcast, and Castro. On Android, these apps allow you to add private feeds: Castbox, Pocket Casts, Podcast Addict, Podcast Republic, Player FM (register for an account first), Dog Catcher, Beyond Pod, Podcasty, and PodKicker.