Engineered for iPhone, iPad & Mac with seamless private sync.
Free for all new users with an optional one-time upgrade to CastKeeper Unlimited (Launch Sale: $2.49 USD • 50% off through Oct 31, 2026). On-device Siri AI, Natural Language Search, Catch Up recaps, Spatial Audio, and zero subscriptions.
Explore CastKeeper's next-generation feature suite for iPhone, iPad, and Mac. Select a category below:
Siri can now play, queue, pause, archive, and recap podcasts natively on device. Hands-free control with seamless Siri integration in iOS 27.
Search using natural conversational prompts like "Find episodes about space exploration without technical jargon" across your library and all podcasts.
Returning to a paused show? Tap Catch Up to receive an instant contextual recap of key discussion points right before you stopped.
Structured episode takeaways, timestamped chapter generation, and sponsor/promo code extraction generated privately on device.
Search every word spoken. Transcribes audio and video podcasts locally and translates into 15+ languages so you can enjoy shows worldwide.
Learns strictly on-device from your listening patterns to curate personalized recommendation shelves with zero external telemetry.
Keep First, SmartSaver cleanup. SmartKeep automatically archives subscriptions to your chosen vault, while SmartSaver intelligently manages storage space using 4 per-podcast rules:
Every new episode is archived and preserved forever.
Keeps user-defined count; SmartSaver deletes older ones.
Archives new shows; SmartSaver auto-cleans once played.
Archives episodes automatically as soon as you finish.
Archive to cloud backends or connected physical drives with zero middleman servers:
Want to protect specific episodes from automated deletion? Simply lock them with one tap.
SmartSaver skips over locked episodes, ensuring your favorite interviews, lore deep dives, or milestone shows remain preserved in your archive indefinitely.
Hosting networks shut down, RSS feeds change, and publishers purge back-catalogs behind paid walls. CastKeeper ensures your library remains permanently intact in your own private cloud or local external drive forever.
Built-in visual storage inspector to monitor exact megabytes per podcast, explore audio and video files directly in your storage bucket or connected USB drive, and stream archived episodes on demand.
Your device transfers audio directly to your own cloud bucket or physical drive with your own API keys. No intermediate servers, no proxy re-encoding, and no ongoing monthly server fees.
Immerse yourself in head-tracking Spatial Audio on AirPods, Beats, and Apple Vision Pro. Built-in Multi-Band Equalizer (EQ), silence trimmer, and speech volume boost.
Native video podcast playback with Picture-in-Picture (PiP) multitasking and an instant audio-only background listening toggle.
Seamless, instantaneous synchronization across iPhone, iPad, and Mac powered by Apple CloudKit. Queue, playback timestamps, locked episodes, and SmartKeep rules stay in perfect sync.
Discover podcast hosts, read bios, follow social channels, and explore other shows and guest appearances by the same personalities.
Custom skip intervals, smart sleep timers, variable playback speeds from 0.5x to 3.0x, custom badges, and auto-queue triage.
Interactive Now Playing Home Screen & Lock Screen widgets, Live Activities, and seamless AirPods gesture controls with zero battery drain.
A native full-screen automotive dashboard layout built for glanceability, high contrast, and maximum driving safety.
Full Siri App Intents while driving: “Hey Siri, play next episode in CastKeeper”, “Catch me up”, or “Archive this episode”.
Returning to your commute? Tap Catch Up on your dashboard or ask Siri to hear an instant verbal summary of what happened before you stopped.
Extra-large touch targets, steering wheel control mapping, instrument cluster display, and glanceable chapter titles.
SmartKeep automatically saves episodes locally and to your cloud vault so playback never drops out in remote cellular dead zones.
Intelligently lowers podcast volume during Apple Maps turn-by-turn navigation prompts and Siri conversations, then resumes smoothly.
CastKeeper
Spotify
Pocket Casts
Overcast
Toggle OpenDyslexic font directly across all transcript and detail views to enhance readability.
Real-time on-device speech transcription with laughter, applause, and music cue detection.
Instantly disable non-essential motion, physics transitions, and zoom effects for sensory comfort.
Fine-tune vibration feedback strength, backed by complete VoiceOver accessibility labels.
CastKeeper never tracks you, never profiles you, and never mines your data. Privacy is a fundamental human right.
AI runs locally and via Apple's Private Cloud Compute.
No tracking SDKs, no behavioral cookies, no user profiling.
Direct sync with iCloud Drive and your own S3 storage credentials.
Basic streaming is free across every app. But why keep paying recurring corporate paywalls for power tools you should already own? CastKeeper is built by an indie developer who believes in fair software over endless subscription profits. Compare below to see what you save: One Fair Unlock. Zero Recurring Rent 🚀
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Data as of September 2026. Please see individual competitor websites for complete details.
CastKeeper is now free for everyone across iPhone, iPad & Mac. Subscribe, stream, watch, and archive up to 10 episodes forever. Upgrade to CastKeeper Unlimited for a limited-time Launch Sale of $2.49 USD (50% off through October 31, 2026, reg. $4.99) with Apple Family Sharing support.
The complete podcast listening and archiving experience for everyone.
Unlock all storage destinations, unlimited episode archiving, and next-generation Siri AI capabilities.
