The Podcast Hosting Platform Built for Growth

No caps on storage, episodes, or downloads. One predictable price.

Publish Unlimited Content for One Price

Castos makes it easy to build, grow, and monetize your show, whether you’re a seasoned podcaster, or are just getting started.

Start Your Podcast Today

Trusted by 40k+ brands like

Trusted by 40,000+ podcasters who refuse to be penalized for growing their show

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Publish Unlimited Content For One Price

Host multiple podcasts and publish an unlimited amount of episodes for one price, always.

Test out new show formats, start up a passion project on the side, it’s all included in one flat fee.

Unmatched Audience Insights

Seeing who is listening, and where, has never been easier with our best-in-class podcast analytics. We give you location, device type, even playback duration for each episode.

These enhanced podcast analytics will give you the information you need to find out what content is most popular with your audience.

Repurpose Your Content

Did you know that YouTube is the 2nd largest search engine online, behind only Google?

Our YouTube Republishing automatically converts all of your audio episodes to video and publishes them automatically to your YouTube channel. This lets you reach this massive audience and expand your listenership.

A Better Way to Monetize Your Show

Podcast advertising can be time-consuming to arrange, and some ads are intrusive to your listeners.

Castos isn’t just a podcast hosting platform, we’re pioneering the next generation of Premium Subscriptions where you can charge for access to some (or all) of your podcast episodes.

Think “Membership site for your podcasts”.

Industry Leading WordPress Integration

The top-rated Seriously Simple Podcasting plugin for WordPress is the easiest way to manage all of your podcast contents right from your WordPress site.

No more coordinating publishing and content between two platforms. All of your content is on your domain, in an environment you have 100% control over.

Two Channels Most Hosts Can’t Touch

If your website runs on WordPress, Castos is the only podcast hosting platform with a native plugin — Seriously Simple Podcasting — that keeps your RSS feed, episode management, and analytics under your own domain. No coordinating between platforms. Full control, right from your WordPress dashboard.

And when your next episode goes live, Castos automatically converts it to video and publishes it to your YouTube channel. One recording. Two audiences. Zero extra work.

Start Your Podcast Today

How much does podcast hosting cost?

Start today for free with our 14-day free trial

After that plans start at $19/mo. for unlimited storage & episodes

Simply the best tools to manage your podcast

Transcriptions On Autopilot

Transcribe your podcast with a click from your dashboard and pay a low, flat fee per audio minute.

Create Multiple Shows

Create as many separate podcasts as you’d like with our series feature — all from one account.

Distribute to all major platforms

Autopublish your podcast in iTunes, Spotify, Sticher, Google Play and a host of apps.

Castos and the Seriously Simple Podcast plugin have made podcasting so much easier for me and our team. We used to have to manage multiple websites and hosting to get the best performance for The Wellness Mama Podcast, but since switching to Castos, everything is managed on the backend of our website which saves so much time and limits potential mistakes. And they migrated over a 100 episodes over from our old platform, all without any downtime. If you run a website built on WordPress, Castos and SSP will make your life so much easier!

Katie Wells

WellnessMama.com

Automatically publish your episodes to dozens of podcast directories

With Castos you can send all of your podcast content directly to directories like Apple Podcasts, Spotify, Amazon Music, Stitcher, Google Podcasts, and many others.

Meet your audience where they already listen to podcasts!

Get Started For Free

How does Castos compare to other podcast hosting platforms?

Most hosts cap your downloads, charge more as your audience grows, or lock you into their platform. Castos gives you truly unlimited storage and downloads at one flat price — and it’s the only platform with built-in WordPress management and automatic YouTube publishing.

See how we stack up: Castos vs Buzzsprout · Castos vs Libsyn · Castos vs Podbean

Frequently Asked Questions about Podcast Hosting

Yes, and Castos handles the migration for you. Whether you have 10 episodes or 1,000, our team will move your audio files, episodes, and RSS feed to Castos — typically with no downtime and no broken links for your existing subscribers. Once your feed is live on Castos, we’ll set up a proper RSS redirect so Apple Podcasts, Spotify, and every other directory your show is in will automatically follow it to its new home. Start your migration here.

No. Castos is built on truly unlimited hosting — no caps on storage, episodes, or downloads. Whether you have 100 listeners or 100,000, your plan price stays the same. Most hosting platforms quietly charge more as your audience grows, through storage limits, download caps, or tiered plans that push you into a higher price tier the moment your show gets traction. Castos doesn’t work that way. Plans start at $19/month and stay there regardless of how much your show grows.

Castos is built for podcasters who are in it for the long term — people running one or more shows seriously, who don’t want to think about hitting caps or re-evaluating their hosting plan every time they gain audience. It’s the strongest fit if you run a WordPress site (Castos integrates natively via the Seriously Simple Podcasting plugin), want to automatically repurpose audio to YouTube, or plan to monetize through subscriptions, ads, or private feeds.

If you’re looking to experiment with your first episode on the smallest possible budget, there are cheaper starting points — but if you’re building something you expect to grow, Castos is designed to scale with you without penalizing your success.

Yes. Every plan includes YouTube Republishing — when you publish an audio episode on Castos, it’s automatically converted to video and published to your YouTube channel. No editing software, no extra steps. YouTube is the second-largest search engine online, and Castos gets you there without any extra work. Castos also distributes your show to all major listening platforms — Apple Podcasts, Spotify, Amazon Music, and dozens more — from a single dashboard.

Castos is built on three things most hosting platforms don’t offer together: truly unlimited storage and downloads at one flat price (no success tax as your audience grows), a native WordPress integration that keeps your RSS feed and analytics under your own domain, and automatic YouTube republishing that turns every audio episode into a video without extra work. If you’re building a show for the long term and want to own your audience, Castos is designed for that.

Podcast hosting requires significant computing power — every upload, every stream, and every listener download draws on server infrastructure. The host you choose determines whether that energy comes from fossil fuels or not.

Castos has been carbon neutral since its founding. Our infrastructure runs on AWS Oregon, which is already a carbon-neutral facility, and in 2022 we purchased Renewable Energy Credits at roughly double our own usage through a partnership with Stripe Climate and Watershed. We also commit 1% of revenue to next-generation carbon removal technologies. If your show or brand cares about its environmental footprint — or your audience does — your hosting infrastructure is a real part of that picture.

Learn more about our promise to the environment.

Castos runs entirely on renewable energy.