You can change the settings in Podcast Addict and switch it over to the SD card. First, make sure that you have the latest version of the app installed. Then:
- Open the Podcast Addict app
- Tap on the three dots at the top right
- Select App Settings > Download
- Scroll down until you see "Storage Folder" and tap on it
- Now you may have to grant the app permissions to access the folders. This depends on your previous settings. But once it has the permissions...
- Select "Removable SD Card" and tap OK