Castos
Depends
Confidence: Medium
Buy Castos if you need unlimited hosting, private/internal podcast feeds, or WordPress integration . paid plans start at $19/mo with a 14-day trial.
Comparison
Castos vs Transistor
Castos and Transistor both land on Depends.
Transistor
Depends
Confidence: Medium
Buy if you run multiple shows or a business podcast and want analytics plus human support.
| Compare | Castos | Transistor |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Creators wanting unlimited hosting on one plan | Multi-show creators |
| Who it's not for | Hobbyists who want a free tier . Castos has none | Hobby podcasters . free hosting exists (Guess) |
| Privacy | Multiple public CVEs (2023-2025) in Castos WordPress plugins, mostly XSS/CSRF; hosted platform itself not implicated.11 | No known public vulnerabilities found in the sources reviewed. |
| Support quality | No support-quality evidence in sources | 'Real human support' promise; active founders on Reddit |
| Public sentiment | G2 reviewers consistently praise Castos and WordPress users call its plugin 'almost perfect', while some Reddit threads question unlimited-host reliability.¹ | Reviewers and Reddit users describe Transistor as simple, reliable hosting with standout support, especially valued by creators running multiple shows. |
| Biggest gotcha | Using the WordPress plugin route? Several 2023-2025 CVEs . patch promptly11 | Plan download caps mean overage fees or forced upgrades once your show grows (Guess) |
Pick Castos when
- Creators wanting unlimited hosting on one plan
- Businesses running private/internal podcasts
- WordPress-site podcasters
- Agencies hosting client shows
When Castos is not a fit
- Hobbyists who want a free tier . Castos has none
- One-episode experimenters; $19/mo is overkill
- Security-strict orgs uneasy about plugin CVE history
- Anyone needing only bare-bones RSS hosting
Pick Transistor when
- Multi-show creators
- Business and brand podcasts (Guess)
- Podcasts with multiple team members (Guess)
- Audio + video podcasters
When Transistor is not a fit
- Hobby podcasters . free hosting exists (Guess)
- Single-show hobbyists who won't use unlimited shows
- Creators wanting built-in ads or listener subscriptions (Guess)
- Buyers wanting the absolute cheapest paid host (Guess)
Sources
- Castos Reviews (G2)g2.comreview
review
- Castos Review, Pricing & Features (2026)softwares.comreview
- Castos Private Podcasts review . what's free, and what isn'ttryslicemedia.comreview
- Castos Review: Premium Content, Transcriptions & Simplicitythepodcasthost.comreview
- Almost perfect . Seriously Simple Podcasting Reviewwordpress.orgreview
review
- Captivate vs Castospodcasters.mereview
official
- CVE-2025-49923: Castos Simple Podcasting XSSsentinelone.comsecurity
- CVE-2025-66061: Castos Simple Podcasting CSRFsentinelone.comsecurity
- CVE-2025-62882 - NVDnvd.nist.govsecurity
- Castos Picks Up $756k In Fundingindiehackers.comnews
- Castos vs Nulia: Revenue & Team Sizegetlatka.comnews
- Transistor homepagetransistor.fmofficial