Castro Deep Links for Podcasters
Turn any castro.fm link into a smart link that launches Castro on your show or a specific episode, so a tap from your bio or socials drops iPhone listeners one button away from Subscribe.
Castro is a distinctive iOS podcast app built around an Inbox-and-Queue workflow that lets meticulous listeners triage each new episode before they commit to it. The hitch: when one of those listeners taps a plain castro.fm link from elsewhere, mobile usually loads a web page first, inserting a step between curiosity and the Subscribe button.
A Castro deep link removes that step. Share a short LinkTwin link rather than a raw castro.fm URL, and a tap on iPhone opens the Castro app directly on your show or the episode you’re promoting, landing the listener right where they can subscribe and send it to their Inbox or Queue in a single tap.
When Castro isn’t installed, the link gracefully opens castro.fm in the browser, so the same link is safe to drop into your Instagram bio, show notes, an email, or a QR code no matter which player each fan favours. One branded short URL, the right app every time, and a full log of every tap.
Castro listeners decide fast, get your show in front of them in-app before the moment passes.
No web-page detour. Listeners land in the Castro app on your show, ready to subscribe in one tap.
Reach Castro fans where they triage, so your new episode is one tap from their listening queue.
Use the same smart link across bios, posts, and show notes, it routes to the right device on its own.
Built-in analytics reveal which post, channel, or episode actually sends listeners to Castro.
From a castro.fm URL to an app-opening, trackable link in about a minute, no code required.
Grab the link to your show or a single episode from the Castro share sheet or your browser’s address bar.
Drop the URL into the generator above. LinkTwin detects the Castro link and prepares the app handoff for you.
Use the generated link as-is, or add a custom alias (like /listen) or your own domain for a polished URL.
Add it to your bio, newsletter, and posts. Every tap opens Castro when possible, and every tap is tracked.
However you promote your show, a deep link gets Castro fans to Subscribe faster.
Share one link when an episode lands; Castro fans tap once and triage it straight into their Inbox.
Run an “add me on Castro” campaign and measure which channel converts the most listeners.
Send your social audiences into the Castro app from a single, trackable bio link.
List this next to your other player links so each listener opens the app they actually use.
Castro gives hosts no per-link analytics, so a tracked LinkTwin link is the clearest way to see what your promotion drives.
Watch total and unique clicks update live as listeners tap your Castro links.
Break clicks down by country and device to understand where your Castro audience comes from.
Tag each link with UTM parameters to learn which platform sends the most subscribers.
Add Meta, Google, TikTok or X pixels to retarget everyone who clicked toward your podcast.
Want to explore Castro or grab the app from the source? Head over there. When you’re ready to send fans into the app and measure your reach, build your links with LinkTwin.
Paste your castro.fm show or episode URL into LinkTwin and share the short link it gives you. On an iPhone with Castro installed, the link opens the app directly on that page, where listeners can subscribe and triage in one tap. Without the app, it opens castro.fm in the browser instead, all handled automatically.
Yes. LinkTwin supports both show-level and individual episode links. Each opens in the correct place inside the Castro app, with a web fallback if the app isn’t installed, so you can promote a specific episode the instant it publishes.
Castro is an iOS-only app, so on Android and desktop the LinkTwin link simply opens the castro.fm web page in the browser. You still share a single link, it sends iPhone fans into the app and routes everyone else somewhere sensible.
Absolutely. Every LinkTwin link records total clicks, unique clicks, country, device and referrer in real time. You can also add UTM tags or retargeting pixels, which is handy since Castro doesn’t tell you which post or channel a tap came from.
Yes. LinkTwin includes a free-forever plan with unlimited links and a monthly click allowance, ideal for getting started. You only upgrade if you need a custom domain, more clicks, or advanced features like A/B testing and retargeting. No credit card required.
Create a free Castro deep link that opens your show in the app and tracks every click.
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