Podcasts are audio or video files that are downloaded to a mobile device and listened to or watched. Many can be listened to and watched on the web. The name Podcast came from Apple. Many years ago when Apple just had the classic MP3 player, Apple began supporting and listing Podcasts in their iTunes app. The Apple Music player was called an iPod. Also these sound files were usually regularly released like broadcast TV shows, so these files were called Podcasts. I use two different programs to listen to Podcasts on my devices. I use Overcast and Pocketcast . I used Pocketcast for years when Overcast came on the scene. Overcast got great reviews, mostly because the developer was very well known in the tech community. So I got it. I switch between the two every couple of months. The latest Pocketcast is very well done. Both Overcast and Pocketcast work well on the iPhone and iPad. Overcast has a web player, while Pocketcast has both a web player and a Mac downloadable app