You can make episodes available only to individuals who subscribe to your podcast through your PodOps website.
You’ll find an option to do this when creating or editing an episode (Podcast > Episodes).
Within the episode editor you will find a checkbox in the right options menu. By selecting: Free Subscriptions (Require email to listen) your episode will not appear on your podcast website to anyone who has not subscribed.
If your RSS Feed is connected to podcast directories (Apple Podcasts, Spotify, etc.) your episode will be available there when this option is checked.
If you wish to hide your episode from your RSS Feed and connected Directories, check the box next to Hide From RSS Feed and Directories.