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Castro vs Downcast: catalog facts
Castro	Downcast
Freemium A limited free version is available. Castro Plus is a paid subscription.	Paid A paid purchase or subscription is required.
iOS	macOS, iOS
Inbox and queue model keeps a large subscription list under control Silence trimming and volume enhancement on the paid tier	Per-podcast rules for downloads, playback speed and episode retention iCloud sync across every Apple device including Watch and TV
iOS only Most features require the paid subscription	Apple platforms only Paid purchase or subscription depending on platform
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.