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Castos vs Postmark

Castos logo

Castos

Software

Simple podcast hosting for WordPress sites

From
$13/month
Rated
-
Full reviewWebsite
Postmark logo

Postmark

Software

No hidden fees, no guesswork. Just the features you need, at a price that makes sense

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Postmark has a free tier, so it costs nothing to try first.
  • Each has a real cost: Castos transcripts are metered by tier, at 10 a month on Essentials and 100 on Pro; Postmark free tier caps at 100 emails per month with no overages allowed

Where they differ

Only the attributes on which Castos and Postmark actually diverge.

Attributes where Castos and Postmark differ
AttributeCastosPostmark
Starting price$13/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWeb, WordpressWeb
Founded2016Unknown

Identical on both: 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 Castos

  • Unlimited hosting
  • WordPress integration
  • Distribution
  • Analytics
  • Monetization
  • Email marketing
  • WordPress
  • All podcast platforms

Only in Postmark

Nothing recorded that Castos does not also cover.

What people use each for

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

Castos

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

Postmark

No use cases recorded yet. See the Postmark review.

Where each one falls short

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

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

Postmark

  • Free tier caps at 100 emails per month with no overages allowed
  • Basic plan ($15/mo) includes 10,000 emails then charges $1.80 per 1,000 extra; Pro and Platform tiers have their own lower per-1,000 overage rates ($1.30 and $1.20), so cost scales per email beyond the included volume
  • Custom high-volume pricing above the published tiers requires contacting sales

Pricing, plan by plan

Castos

$13/month
  • Podcaster$13/month
    • Unlimited hosting
    • Automatic distribution
    • Basic analytics
  • Professional$29/month
    • All Podcaster features
    • Advanced analytics
    • Email marketing

Postmark

Free

No published plan breakdown. See the Postmark review.

Which should you pick?

Choose Castos if

  • You need unlimited hosting.
  • You work on Web, Wordpress.
  • You also want wordpress integration.
Castos review

Choose Postmark if

  • You want to start without paying.
Postmark review

Questions people ask

Is Castos or Postmark better?
Neither clearly leads. Castos starts at $13/month and Postmark at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Castos or Postmark?
Postmark has a free tier; the other does not. Paid plans start at $13/month for Castos and Free for Postmark.
Does Castos or Postmark run on more platforms?
Castos runs on Web, Wordpress. Postmark runs on Web.
Can I use Postmark for free?
Yes. Postmark has a free tier, so you can try it without paying. Castos starts at $13/month.
What is Castos best used for?
Castos is most often used for podcast hosting with unlimited episodes and downloads, private and subscriber-only podcasts, automatic transcription of episodes, republishing episodes to youtube. Of those, podcast hosting with unlimited episodes and downloads and private and subscriber-only podcasts are not what Postmark is typically brought in for.
What can Castos do that Postmark cannot?
Castos covers Unlimited hosting, WordPress integration, Distribution, Analytics.
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