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SPECIFICTION
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Castbox

castbox.fm

Free plan WebiOSAndroid
Visit castbox.fm
Spec score 8.5 #15 of 55 in Podcast apps

What it is

Castbox is a podcast app for discovering and listening to shows. It is available on iOS, Android and web, as well as PWA, Amazon Alexa, Apple CarPlay, Android Auto and Apple Watch. Its recommendation engine uses artificial intelligence to help listeners find podcasts, and automated transcription and indexing power In-Audio Search. Listeners can download episodes for offline listening, follow private feeds, sync across devices, comment and share. Creators can use Creator Studio analytics for subscribers, streams and downloads; Castbox also offers free audio upload and storage, plus free web hosting for up to 5 podcasts or channels. The Free plan costs nothing and limits listeners to 100 channel subscriptions. Castbox says it uses safeguards for user data but cannot guarantee fully secure internet transmissions. Users can request account and personal data deletion through the app or by emailing support.

Spec sheet

Product
Castbox is a podcast app for discovering and listening to podcasts.Read 5 Oct 2026 · castbox.fm
Free plan
YesRead 20 Sep 2026 · castbox.fm
Support
The Premium help page says Premium users' email will be answered at the support team's earliest convenience.Read 5 Oct 2026 · helpcenter.castbox.fm
Founded
Castbox says it was founded in 2016.Read 5 Oct 2026 · castbox.fm
Audio hosting
Castbox offers free audio upload and storage for podcasters.Read 5 Oct 2026 · castbox.fm
Cross-device sync
YesRead 20 Sep 2026 · castbox.fm
Data deletion
Users may request account and personal data deletion through the app or by emailing Castbox support.Read 5 Oct 2026 · castbox.fm
Discovery
Castbox says its recommendation engine uses artificial intelligence to help users discover podcasts.Read 5 Oct 2026 · castbox.fm
Downloads
The iOS app page says listeners can download episodes for offline listening.Read 5 Oct 2026 · castbox.fm
Episode transcripts
NoRead 20 Sep 2026 · castbox.fm
Free tier limit
Free users are limited to 100 channel subscriptions; Premium removes that limit.Read 5 Oct 2026 · helpcenter.castbox.fm
In-Audio Search
Castbox says it built automated podcast transcription and indexing to power In-Audio Search.Read 5 Oct 2026 · castbox.fm
Listener engagement
Castbox offers commenting and sharing features for listeners and podcasters.Read 5 Oct 2026 · castbox.fm
Offline downloads
YesRead 20 Sep 2026 · castbox.fm
Podcaster analytics
Creator Studio provides analytics for subscribers, streams, and downloads.Read 5 Oct 2026 · castbox.fm
Premium benefits
Premium includes removal of visual ads, unlimited channel subscriptions, a personalized homepage, and advanced per-podcast playback settings.Read 5 Oct 2026 · helpcenter.castbox.fm
Privacy and security
Castbox says it uses industry standard safeguards against loss, misuse, alteration, unauthorized access, and unnecessary data retention, while noting it cannot guarantee internet transmissions are fully secure.Read 5 Oct 2026 · castbox.fm
Private feed support
YesRead 20 Sep 2026 · castbox.fm
Smart device support
The download page says Castbox supports Amazon Echo, Apple CarPlay, Google Android Auto, and Apple Watch.Read 5 Oct 2026 · castbox.fm
Supported platforms
iOS, Android, web, PWA, Amazon Alexa, Apple CarPlay, Android Auto, Apple WatchRead 20 Sep 2026 · castbox.fm

Plans and prices

Castbox Premium Price not published Removes visual and video ads · Unlimited podcast subscriptions · Advanced playback settings · Personalized homepage Read 20 Sep 2026 · apps.apple.com
Free Free Free podcast app · free audio upload and storage · free web hosting for up to 5 podcasts/channels · free users limited to 100 channel subscriptions Read 5 Oct 2026 · helpcenter.castbox.fm

Every Castbox plan and price →

Strong points and limits

Strong points

  • Available across mobile, web and connected devices.
  • Offline episode downloads are supported.
  • Private feeds and cross-device sync are available.
  • Creator Studio reports subscriber, stream and download analytics.
  • Free audio upload and storage for podcasters.

Limits

  • Free users are limited to 100 channel subscriptions.
  • Internet transmissions cannot be guaranteed fully secure.

Who it suits

Castbox suits podcast listeners who want discovery, offline downloads, private feeds or playback across several device types. It also offers creators hosting and audience analytics for subscribers, streams and downloads.

Verdict

Castbox combines podcast discovery and listening features with tools for creators, including hosting and analytics.

Where Specifiction places it

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