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Podcasting · head to head

Audioboom vs Castos

Audioboom logo

Audioboom

Podcasting

Audio hosting and distribution platform

From
Free
Rated
-
Full reviewWebsite
Castos logo

Castos

Podcasting

Simple podcast hosting for WordPress sites

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Audioboom browser compatibility constraints; platform explicitly requires Chrome, Firefox, Safari, or Edge; older browsers not supported; Castos transcripts are metered by tier, at 10 a month on Essentials and 100 on Pro
  • They diverge on capability: Audioboom covers Audio hosting, Castos covers Unlimited hosting.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Audioboom and Castos actually diverge.

Attributes where Audioboom and Castos differ
AttributeAudioboomCastos
Pricing modelfreemiumsubscription
PlatformsWeb, Ios, AndroidWeb, Wordpress
Founded20062016

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

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
  • Discovery platform
  • Sponsorship matching
  • Podcast platforms
  • Social media
  • Privacy controls
  • Ios support
  • Android support

Only in Castos

  • Unlimited hosting
  • WordPress integration
  • Email marketing
  • WordPress
  • All podcast platforms
  • WordPress security
  • Wordpress support

Both cover

  • Distribution
  • Monetization
  • Analytics
  • Email services
  • Content protection
  • Web support

What people use each for

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

Audioboom

  • Audio publishingnot Castos
  • Podcast distributionnot Castos
  • Monetizationnot Castos

Castos

  • Podcast hosting with unlimited episodes and downloadsnot Audioboom
  • Private and subscriber-only podcastsnot Audioboom
  • Automatic transcription of episodesnot Audioboom
  • Republishing episodes to YouTubenot Audioboom
  • WordPress-integrated podcast publishingnot Audioboom

Where each one falls short

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

Audioboom

  • Browser compatibility constraints; platform explicitly requires Chrome, Firefox, Safari, or Edge; older browsers not supported
  • Ad blocker conflicts; users must disable ad blockers for proper platform functionality
  • Minimal technical documentation about monetization thresholds, audience analytics depth, or distribution reach
  • Limited platform capability information makes it difficult to assess other technical constraints

Castos

  • Transcripts are metered by tier, at 10 a month on Essentials and 100 on Pro
  • Private podcast subscribers are capped, at 100 on Essentials and 500 on Pro
  • Video hosting and the uptime SLA require the Pro tier at $99 a month
  • SSO and a dedicated account manager are Premium only, from $499 a month
  • Team seats are limited by tier, at 5 on Growth and 10 on Pro

Pricing, plan by plan

Audioboom

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

Castos

Free
  • Essentials$19/month
    • unlimited podcasts/episodes
    • 10 transcripts/month
  • Growth$49/month
    • advanced analytics
    • 25 transcripts/month
  • Pro$99/month
    • video hosting
    • 100 transcripts/month
  • Premium$499/month
    • unlimited transcripts
    • dedicated account management

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 discovery platform.
Audioboom review

Choose Castos if

  • You need unlimited hosting.
  • You want to start without paying.
  • You work on Web, Wordpress.
  • You also want wordpress integration.
Castos review

Questions people ask

Is Audioboom or Castos better?
Neither clearly leads. Audioboom starts at Free and Castos at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Audioboom or Castos?
Audioboom starts at Free and Castos at Free.
Does Audioboom or Castos run on more platforms?
Audioboom runs on Web, Ios, Android. Castos runs on Web, Wordpress.
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 Castos is typically brought in for.
What can Audioboom do that Castos cannot?
Audioboom covers Audio hosting, Discovery platform, Sponsorship matching, Podcast platforms. Castos covers Unlimited hosting, WordPress integration, Email marketing, WordPress. Both handle Distribution, Monetization, Analytics, Email services.

Answered from the vendors’ own pages

Audioboom: What browsers are supported on AudioBoom?

AudioBoom requires modern browsers: Chrome, Firefox, Safari, or Edge. Older or alternative browser versions are not supported and may experience functionality issues.

Source
Castos: How much does Castos cost?

Castos plans range from USD 19/month for Essentials to USD 499+/month for Premium, with annual billing offering 2 months free discount.

Source
Audioboom: Why does AudioBoom not work with my ad blocker enabled?

AudioBoom has difficulty functioning with ad-blocking software enabled. Disabling ad blockers should resolve page load and functionality issues.

Source
Castos: Is there a free trial for Castos?

Yes, Castos offers a 14-day free trial on the Essentials plan with no credit card required to get started.

Source
Castos: How many transcripts are included per plan?

Essentials includes 10 transcripts/month, Growth includes 25, Pro includes 100, and Premium includes unlimited transcripts.

Source
Castos: What are Castos add-ons and how much do they cost?

Add-ons include AI Assistant at USD 10/month and extra private subscribers at USD 50/month per 500 additional subscribers.

Source
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