Episodes vanish. Feeds disappear. Servers go dark. But your favorite podcasts don't have to end with them.
Podcast hosts shut down. Creators delete archives. RSS feeds expire. What happens to the episodes that shaped your thinking, made you laugh, or kept you company?
Hosting platforms shut down, leaving your favorite shows inaccessible, possibly forever.
Creators remove content, serial podcasts end, and networks purge archives.
Archive once, keep forever. Your personal archive, your permanent collection.
Unlock the full potential of your podcast library with on-device AI. Powerful features that respect your privacy. No cloud. No tracking. No data mining. Just your podcasts, enhanced.
Search every word. CastKeeper transcribes episodes on-device. Reference specific moments in time, or skip to the good parts.
Missing chapters? CastKeeper can automatically generate chapters for your episodes based on content. No more guessing where the good parts are.
Use AI to automatically create collections of episodes based on topics you care about. Follow specific topics, events, products, people, or anything else you're interested in. CastKeeper will automatically add new episodes to your Smart Collection.
Get quick, intelligent summaries of episodes and key topics before you listen, helping you decide what's worth your time. Support your favorite podcasters and reference promo codes with ease.
CastKeeper includes a directory of podcast hosts. Learn more about your favorite hosts, and where
to follow them on social media or read more about them on their website. Learn more about your
favorite hosts,
and find new favorites. CastKeeper's directory is always growing, and we're always adding new
hosts.
If you are a podcast host, you can submit your information to be added to the directory. All
submissions are
reviewed to ensure accuracy, privacy, and relevance. Information is only sourced from public
websites
unless submitted by the host for inclusion in the directory.
Your archive lives where you want it. CastKeeper can store your podcasts on your device, iCloud Drive, or S3-compatible storage.
SwiftUI for a native experience on iPhone and iPad for a smooth, responsive interface.
CastKeeper makes it easy to set up cloud storage for your podcasts. iCloud Drive uses your existing Apple ID to archive your podcasts to iCloud Drive. Easily add your exsiting S3 buckets from Cloudflare R2, Backblaze B2, AWS S3, Wasabi, DigitalOcean Spaces, or any Custom S3-compatbile storage provider.
CastKeeper includes a full set of customization options to make your experience as unique as your library.
CastKeeper's on-device transcription includes on-device translation to 15+ languages. Transcribe and translate your favorite podcasts on the go.
CastKeeper includes widgets for quick access to see your current archive storage usage right on your home screen.
CastKeeper respects your battery life. AI features are queued and run in the background only when your device is plugged in and charging to ensure your battery life is preserved.
We don't collect your data because we never see it. Everything happens on your device, synced through your own accounts.
AI runs entirely on your hardware
No tracking, no monitoring, no profiling
Sync through accounts you control
| Feature | CastKeeper | Pocket Casts Plus | Pocket Casts Patron | Castro Plus | Overcast |
|---|---|---|---|---|---|
| Subscribe & Listen to Podcasts | Yes | Yes | Yes | Yes | Yes |
| No Ads in App Interface | Yes | Yes | Yes | Yes | Subscription Required |
| Archive Podcast Episodes to Cloud Storage from App | * Unlimited (Bring Your Own Storage) | 20GB | 100GB | "Sideloading" Only | 2GB |
| AI Generated Chapters | Yes (On Device) | No | No | No | No |
| Generate Transcripts | Yes (On Device) | Requires Subscription (Cloud Only) | Requires Subscription (Cloud Only) | No | No |
| Learn More About Podcast Hosts | Yes | No | No | No | No |
| Cloud Sync Across iOS Devices | Yes - Uses Apple Account On Device | Included - Separate Login Required | Included - Separate Login Required | Included - Separate Login Required | Included - Separate Login Required |
| Family Sharing | Yes | No | Subscription Required | Family Subscription Required | No |
| Price | No Subscription Required | $39.99/year | $99.99/year | $24.99/year (Individual) $39.99/year (Family) |
$14.99/year |
Data as of January 1, 2026.
We believe enjoying podcasts should be affordable. That's why we offer a simple one-time purchase. After purchasing CastKeeper, put your savings to supporting podcasters rather than the companies that extract profits from your listening experience.
Storage costs are separate and billed through your provider.
* AI features require a device that supports Apple Intelligence.