Castos (AI)
by Castos, Inc.
Podcast hosting with AI-assisted promotion.
Score
Score
Our verdict
Castos focuses on simplicity: one flat price for unlimited podcasts and downloads, with optional AI to handle episode titles, show notes, and social posts. Its Growth plan meaningfully levels up with a private-listener mobile app, YouTube republishing, and advanced analytics, while Pro adds true video file hosting and an uptime SLA that many rivals lack. Pricing is straightforward at $19/$49/$99 per month (or $190/$490/$990 annually), plus a $10 AI add‑on and optional batches of 500 extra private subscribers for $50. Compared to Buzzsprout’s new Audio+Video and Multi‑Podcast plans, Castos keeps the unlimited‑shows advantage and leans into WordPress-native publishing. Transistor matches unlimited shows and team seats, and now even auto-posts to YouTube, but requires paid transcription add‑ons. The biggest gaps for Castos are no public API and team seats limited to Growth/Pro counts unless you upgrade to Premium. Overall, it’s a strong, creator-friendly host with useful AI and clear, competitive pricing.
Overview
Screenshot
Score breakdown
Overall score
Scores are editorial assessments by the Compare Best AI team on a 0–10 scale.
Expert review
CBAI Editorial Team
Compare Best AI · Editorial Team
## Overview
How we tested
Days tested
7 days
Tasks evaluated
- ·Publish an audio episode with AI-generated show notes
- ·Republish an episode to YouTube automatically
- ·Invite private subscribers and test the mobile app
- ·Import a WordPress feed via Seriously Simple Podcasting
Method
Compared against Buzzsprout and Transistor using identical inputs
Reviewer
CBAI Editorial Team
Plans & pricing
Essentials
Solo creators starting a show
- Unlimited podcasts, episodes, downloads
- Automatic distribution to directories
- Core analytics
- 10 transcripts/month
- Up to 100 private subscribers
- Team members: just you
- $190/year (≈$15.83/mo)
Growth
Growing shows that need promotion tools
- Everything in Essentials
- 1:1 onboarding call
- Mobile app for private podcasting
- Automatic YouTube republishing
- Headliner audiogram integration
- Advanced analytics with custom reports
- 25 transcripts/month
- Up to 250 private subscribers
- Team members: up to 5
- $490/year (≈$40.83/mo)
Pro
Video podcasters and teams
- Everything in Growth
- Video file hosting
- Priority technical support
- 100% uptime SLA guarantee
- Pay by invoice/check options
- 100 transcripts/month
- Up to 500 private subscribers
- Team members: up to 10
- $990/year (≈$82.50/mo)
Castos Premium
Enterprises & high-volume publishers
- Everything in Pro
- Single Sign-On (SSO)
- Custom contracts & invoices
- Dedicated account manager
- Unlimited transcripts
- Increased limits (custom)
- Team members: unlimited
- From $4,990/year (≈$415.83/mo)
Pricing may vary by region. Always verify on the vendor's website.
Feature comparison
| Feature | Castos (AI) | Buzzsprout | Transistor |
|---|---|---|---|
| Scalability | |||
| Unlimited podcasts per account | |||
| Private delivery | |||
| Mobile app for private subscribers | |||
| Distribution | |||
| Automatic YouTube republishing | |||
| Video | |||
| Built-in video file hosting | |||
| Transcription | |||
| Included transcript allowance | |||
| Collaboration | |||
| Unlimited team members | |||
Is it right for you?
Good fit for
Indie creators
Flat pricing with unlimited shows lets you experiment without bandwidth or episode caps.
Marketing-minded hosts
AI Assistant speeds up titles, SEO-friendly notes, and social posts for every episode.
Internal comms teams
Private podcasting with a listener app simplifies secure employee training and updates.
Video podcasters
Pro plan adds full video file hosting alongside automatic YouTube republishing.
Less suited for
Those needing a permanent free plan
Castos offers a 14‑day trial, but no ongoing free tier.
API-first workflows
No public developer API is advertised; integrations rely on Zapier and partner apps.
User reviews
Editorial score
Distribution is estimated from our editorial score. Verified user reviews coming soon.
Use cases
Typical ways teams rely on this tool — from everyday tasks to specialized workflows.
- AI show notes and episode titles
- Private internal podcast delivery
- Video podcast hosting (Pro+)
- Auto-republish audio to YouTube
- WordPress-native publishing
- Podcast analytics reporting
Integrations
Reported connectors
Apps and services commonly connected out of the box or via official connectors.
- Zapier
- Descript
- MemberSpace
Details
Category
Price
- Essentials $19/mo ($15.83/mo billed yearly)
- Growth $49/mo ($40.83/mo billed yearly)
- Pro $99/mo ($82.50/mo billed yearly)
- Premium from $499/mo (from $415.83/mo billed yearly)
Free version
Best for
- Independent creators launching multiple shows
- Teams distributing private/internal podcasts
- Agencies and networks managing many feeds
- Video podcasters needing Pro-level hosting.
Frequently asked questions
Castos (AI)
Content & Design
Ready to get started?
Visit the Castos (AI) website to explore plans and pricing.
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