Comparison

Casterly vs InteroCast

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Casterly

Features
Read full description

Your podcasts, nothing else. Casterly is a clean, retro-inspired podcast player for people who just want to listen. No suggested shows. No algorithmic noise. No cluttered feeds trying to tell you what to hear next. No personal data collected. Just your podcasts, ready to play. Everything you need - Search, browse and subscribe to unlimited podcasts - Download episodes for offline playback - Auto-download new episodes from your subscribed shows - Native Apple Watch companion app with complication - New episode notifications - turn them on or off for each show individually - Save episodes to revisit later - Chapter support - AirPlay support - iCloud sync across your devices - Home screen widget with playback controls - Manually control storage limits Unlock the full experience with Casterly Pro which gives you: - CarPlay support for hands-free listening on the road - Variable playback speed - Sleep timer - Import/export OPML files for easy migration - Add any podcast directly via RSS feed, perfect for indie and niche shows - Helps support a one-person indie app studio Privacy policy: https://sodiumstudio.com/casterly-privacy Terms of use: https://sodiumstudio.com/casterly-terms Proudly made in New England

About

InteroCast

A private podcast player that runs entirely on your device. Enjoy features like offline listening, customizable queues, and AI-powered transcripts and summaries. Your data stays with you, with no tracking or accounts.

Highlights
  • On-device podcast playback
  • No account or tracking
  • AI-powered transcripts and summaries
  • Offline episode downloads
  • Customizable playback queue
  • CarPlay and Home Screen widget support
  • Shareable transcript clippings
Features
Read full description

A calmer, more private way to listen - and to actually engage with what you hear. InteroCast is a complete podcast player that runs entirely on your device. Search and subscribe, build a queue, download for offline, and listen in a clean, editorial design. No account. No tracking. No server in the middle. THE BASICS, DONE WELL • Find shows by name, or add any podcast by RSS URL • "Up Next" queue you can reorder with a long-press • Variable speed, skip controls, and a sleep timer • Download episodes for offline listening • New-episode notifications for shows you follow • CarPlay support and a Home Screen widget • iCloud sync keeps your library across devices • Built for iPhone and iPad, with a landscape two-pane layout GO DEEPER WITH AI (OPTIONAL) Bring your own OpenAI or Anthropic key to unlock: • Transcripts that follow along as you listen — generate them with OpenAI Whisper, or free and entirely on-device with Apple Intelligence • Ask - a chat assistant that knows your exact position in the episode, so you can ask "what was just said?", "summarize so far," or "what's coming up?" • Voice mode — a hands-free, real-time conversation about whatever you're hearing SAVE THE GOOD PARTS • Long-press any transcript line to clip it • Turn clippings into shareable pull-quote cards PRIVACY BY DESIGN Your library, history, downloads, and preferences live only on your device. There's no InteroCast account and no analytics server. When you use an AI feature, the request goes straight from your device to OpenAI or Anthropic with your own key — it never passes through us. Apple Intelligence transcription happens fully on-device. InteroCast is free to use as a podcast player. The AI features use your own API key, so you pay the providers directly only for what you use. A quieter way to listen.

Screenshots

Casterly4 screens
InteroCast4 screens

Verdict

The call

The clearest difference is iOS requirement: InteroCast at 15.1 against Casterly's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Casterly sells 1 in-app purchase, starting at $9.99 per year and InteroCast sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Casterly ships an update fortnightly, InteroCast every 2 weeks. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

Scorecard1 real difference · 8 level
Casterly versus InteroCast: the parameters behind the verdict, then further details
ParameterCasterlyInteroCast
PriceFreeFree
Rating5.0 (1 ratings) — better
Number of ratings1 — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.615.1 — better
Further details — not scored
Size9 MB38 MB
Age rating12+4+
DeveloperSodium Studio, LLCSeud.IO

In-app purchases

1 purchases

Casterly

Subscriptions1
  • Casterly Pro$9.991 Year
3 purchases

InteroCast

One-time3
  • Small tip$1.99
  • Generous Tip$4.99
  • Big Tip$9.99

Questions

Is Casterly free?
Casterly is free to download, with in-app purchases available.
Is InteroCast free?
InteroCast is free to download, with in-app purchases available.
Do Casterly or InteroCast have ads?
Neither Casterly nor InteroCast shows ads.
Which is updated more often, Casterly or InteroCast?
Casterly ships an update fortnightly, and InteroCast every 2 weeks. Most recently, Casterly was updated on September 14, 2026 and InteroCast on September 10, 2026.

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