The most important part of "podcast" is that phrase you hear so often, "wherever you get your podcasts". It's an open standard, you can pick your app, they can

The most important part of "podcast" is that phrase you hear so often, "wherever you get your podcasts". It's an open standard, you can pick your app, they can be hosted anywhere. If an audio program is exclusively available on, say, Spotify, it isn't a podcast.