Switching from Transistor to Castport is mostly a matter of following the same three steps every OneTimeSuite app uses — buy once, deploy or install, bring your workflow over.
Step 1: Buy once on Whop
One-time $39 for the packaged installer (Windows desktop app + guided VPS deploy) with lifetime updates.
Step 2: Deploy and point your domain
docker compose up on a $5 VPS, put Caddy or nginx in front for TLS, and set BASE_URL to your real https:// domain.
Step 3: Upload and submit
Upload your first episode, then submit /feed/your-show.xml to Apple Podcasts Connect and Spotify for Podcasters. Done.
What to expect during the switch
Castport covers the same core workflow as Transistor, so most people are productive within the first session — see the full feature list and FAQ on the product page before you commit.
Why make the switch at all
Transistor runs $19/mo, forever. Castport is $39, once. Pays for itself in 2.1 months against Transistor Starter — or under a month against Growth. Over 3 years you keep $645–3,525.
Try Castport — $39, once
Upload episodes, get a valid RSS feed, public pages, embeddable player & download stats. Pay once.