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Software · head to head

Audioboom vs Castro

Audioboom logo

Audioboom

Software

Audio hosting and distribution platform

From
Free
Rated
-
Castro logo

Castro

Software

Podcast app with episode inbox

From
Free
Rated
-

The short version

  • They diverge on capability: Audioboom covers Audio hosting, Castro covers Podcast app.

Where they differ

Only the attributes on which Audioboom and Castro actually diverge.

Attributes where Audioboom and Castro differ
AttributeAudioboomCastro
Pricing modelfreemiumUnknown
PlatformsWeb, Ios, AndroidiOS, Apple Watch, iPad
Founded20062013

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Audioboom

  • Audio hosting
  • Distribution
  • Discovery platform
  • Monetization
  • Analytics
  • Sponsorship matching
  • Podcast platforms
  • Social media

Only in Castro

  • Podcast app
  • Inbox system
  • Triage view
  • Playback
  • Discovery
  • Podcast services
  • Apple services
  • Account security

Both cover

  • Privacy controls
  • Web support
  • Ios support

What people use each for

The jobs each tool is most often brought in to do.

Audioboom

  • Audio publishingnot Castro
  • Podcast distributionnot Castro
  • Monetizationnot Castro

Castro

  • Podcast managementnot Audioboom
  • Listeningnot Audioboom

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Audioboom

Nothing recorded yet. See the Audioboom review.

Castro

  • iOS/Apple-only, no Android support
  • No unified inbox for managing multiple podcast accounts
  • Recent ownership change (2024) may affect long-term development

Pricing, plan by plan

Audioboom

Free
  • FreeFree
    • Audio hosting
    • Basic distribution
    • Discovery platform
  • Pro$undefined/month
    • Advanced features
    • Priority support
    • Analytics

Castro

Free
  • FreeFree
    • Core podcast management
    • Inbox/queue/archive
    • CarPlay support
  • Castro Plus$24.99/year
    • Custom per-podcast settings
    • Trim Silence
    • Enhance Voices

Which should you pick?

Choose Audioboom if

  • You need audio hosting.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want distribution.

Choose Castro if

  • You need podcast app.
  • You want to start without paying.
  • You work on iOS, Apple Watch, iPad.
  • You also want inbox system.

Questions people ask

Is Audioboom or Castro better?
Neither clearly leads. Audioboom starts at Free and Castro at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Audioboom or Castro?
Audioboom starts at Free and Castro at Free.
Does Audioboom or Castro run on more platforms?
Audioboom runs on Web, Ios, Android. Castro runs on iOS, Apple Watch, iPad.
Can I use Audioboom for free?
Both have a free tier, so you can try either at no cost before committing.
What is Audioboom best used for?
Audioboom is most often used for audio publishing, podcast distribution, monetization. Of those, audio publishing and podcast distribution are not what Castro is typically brought in for.
What can Audioboom do that Castro cannot?
Audioboom covers Audio hosting, Distribution, Discovery platform, Monetization. Castro covers Podcast app, Inbox system, Triage view, Playback. Both handle Privacy controls, Web support, Ios support.

Answered from the vendors’ own pages

Castro: How much does Castro cost?

Castro 3 is free to download with optional Castro Plus subscription at $24.99/year (includes one-week free trial).

Source
Castro: What platforms does Castro support?

Castro is available on iPhone with an Apple Watch app and is expanding to iPad (launched August 4, 2025). There is no Android version.

Source
Castro: What are the key features of Castro Plus premium subscription?

Castro Plus adds custom per-podcast settings including Episode Limit, Trim Silence, Enhance Voices, Mono Mix, Skip Intros, and variable playback speed.

Source
Castro: How does Castro organize podcasts?

Castro uses an inbox/queue/archive split system where the inbox contains notifications of new episodes and the queue serves as an active playlist.

Source

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