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Castos vs Transistor

Updated June 2026 · A structured head-to-head comparison.

WordPress-first podcast hosting.

Hosting for serious podcasters.

The verdict

Both Castos and Transistor are credible podcast tools, and the right pick comes down to your priorities.

Castos — WordPress-first podcast hosting.

Choose Transistor if you'd rather have a higher overall rating (4.8/5). Hosting for serious podcasters.

Castos vs Transistor: side by side

DimensionCastosTransistor
Starting priceFrom $19/moFrom $19/mo
Free planNoNo
Free trial14 days14 days
Pricing modelSubscriptionSubscription
Best forPodcasters, Wordpress UsersPodcasters, Agencies, Businesses
PlatformsWeb, ApiWeb, Api
Rating4.5/54.8/5Winner

Castos key facts

Vendor
Castos
Pricing
Subscription — From $19/mo
Free tier
Free trial (14 days)
Platforms
Web, Api
Best for
Podcasters, Wordpress Users
Editor rating
4.5 / 5
Founded
2017
Headquarters
Detroit, Michigan

Transistor key facts

Vendor
Transistor.fm
Pricing
Subscription — From $19/mo
Free tier
Free trial (14 days)
Platforms
Web, Api
Best for
Podcasters, Agencies, Businesses
Editor rating
4.8 / 5
Founded
2018
Headquarters
Hamilton, Canada

Frequently asked questions

Is Castos better than Transistor?

Neither is universally better — Transistor edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.

Is Castos or Transistor cheaper?

Castos is the more affordable of the two to get started, at from $19/mo. Castos starts at from $19/mo; Transistor starts at from $19/mo.

Can Castos replace Transistor?

Yes for most teams — both are podcast tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.