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Player FM vs Castbox: catalog facts
Player FM	Castbox
Freemium A free ad-supported tier is available. Premium is a paid subscription.	Freemium A free ad-supported tier is available. Premium is a paid subscription.
Android, iOS, Web	Android, iOS, Web
Topic channels make discovery easier than a raw chart list Cloud sync of position between phone and web	In-audio search finds spoken phrases inside episodes Works on phones, web, Alexa, CarPlay and Android Auto
Free tier is advertising supported with limited offline storage Closed source	Advertising and recommendation-heavy interface on the free tier Closed source
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.