- Unique queue system for managing and tracking multiple podcasts
- Carplay compatibility for seamless listening while driving
- Chapter support for easy navigation within episodes
- Trim silence feature to accelerate silent parts and get through more episodes faster
- Enhance voices feature to improve the listening experience in loud environments
- Sideloading feature to import audio files directly from iCloud Drive
- Mono-mix feature to mix stereo podcasts to mono for easier listening
- Custom settings per-podcast, including episode limit, trim silence, enhance voices, mono mix, skip intros, and playback speed
- Dark mode and sleep timer for night time listening
- Apple Watch app for controlling playback and selecting episodes from the queue
- Episode notifications with a summary of the episode to help users decide if it interests them
- Castro Plus subscription for advanced features and customization options
- Privacy Policy & Terms of Use available on the Castro website.