DeepFox vs CastKeeper For Podcasts
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DeepFox
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Key Features: * AI-Powered Discovery: DeepFox intelligently analyzes content across the internet to find news and insights that are highly relevant to your interests. * Real-Time Alerts: Get immediate notifications for breaking news and updates that matter most to you — never miss important developments again. * Ask & Get Answers: Ask any question, and DeepFox will pull the most relevant, up-to-date answers from across the web, helping you find exactly what you need in an instant. * Personalized Topics: Select the topics that matter most to you and let DeepFox curate a tailored newsfeed that evolves with your preferences. * Track Critical News: Automatically track emerging trends, niche stories, and important developments that are often overlooked by traditional news outlets. * Stay Ahead of the Curve: DeepFox uncovers hidden, valuable insights that might be missed by other news apps, giving you a competitive edge. * Smart Search & Filters: Find the information you're looking for with ease using powerful search tools, custom filters, and topic-based searches. Why Choose DeepFox? * Curated Just for You: Say goodbye to irrelevant news. DeepFox delivers only the stories and updates that matter to your specific interests. * Comprehensive Coverage: Not just mainstream headlines—DeepFox dives deep into the web to surface important, overlooked updates and trends. * Ask Anything: Need answers? Just ask, and DeepFox will fetch the best results from the web, providing you with quick and reliable insights. * Effortless Updates: Set your preferences once, and DeepFox will automatically keep you updated with relevant news and answers—no more manual searching. * Stay Informed 24/7: DeepFox is always working to ensure you never miss out on critical news or insights again. How It Works: 1. Sign Up & Set Preferences: Customize your feed based on your topics, industries, or people you care about. 2. AI News Discovery: DeepFox starts scanning the internet in real-time to discover relevant updates based on your interests. 3. Ask Questions: Need quick answers? Simply ask anything, and DeepFox will retrieve the best responses sourced from the web. 4. Stay Updated: Receive smart notifications on the most important news and insights that match your preferences.
CastKeeper For Podcasts
This app offers a comprehensive podcast listening experience with advanced playback features, organization, and permanent archiving. It allows users to discover new shows, manage their queues, and even turn audio content into actionable knowledge through note-taking and learning tools.
- Advanced audio/video playback
- Permanent episode archiving
- Timestamped note-taking
- AI-powered search and summaries
- Cross-device sync
- Podcast discovery and organization
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YOUR PODCASTS. YOUR PLAYER. YOURS FOREVER. CastKeeper brings listening, watching, discovery, organization, permanent archiving, and podcast learning together in one complete app for iPhone, iPad, and Mac. Follow your favorite shows, build your queue, and enjoy every episode your way. Then go further: preserve the episodes you love in storage you control and turn what you hear into knowledge you can revisit. Free to download. No subscription ever. Podcasts Over Profits. Always. A COMPLETE PODCAST PLAYER Built by people who love podcasts, for people who love podcasts. • Full audio and video playback, with Picture in Picture and audio-only mode. • Spatial Audio, EQ, and Adaptive Dialogue Focus to bring speech forward. • Playback speed controls, Silence Trimming, and Loudness Normalization. • Up Next and Queue management, with direct drag-to-reorder on iOS 27. • CarPlay, Siri voice controls, and Shortcuts for listening on the go. • A sleep timer for winding down. • Private sync across iPhone, iPad, and Mac. • Discover new shows, organize your library, and find your next favorite episode. KEEP WHAT YOU LOVE Feeds get pruned. Shows get pulled. Back catalogs disappear. Your collection doesn’t have to. Archive episodes independently of the original feed, along with transcripts, chapters, artwork, notes, and metadata. Free users can preserve up to 10 episodes in iCloud Drive. CastKeeper Unlimited unlocks unlimited archiving and additional destinations, including Google Drive, pCloud, Dropbox, external drives, and S3-compatible storage such as Cloudflare R2 and Backblaze B2—even your own server. Let SmartKeep automatically archive your favorite shows. Lock the episodes that matter and build a collection you control. TURN LISTENING INTO LEARNING CastKeeper Knowledge brings your notes and episode learning tools into one focused workspace. • Capture ideas with timestamped notes and revisit the moment that inspired them. • Explore Key Facts and a glossary drawn from the episode transcript. • Revisit Notable Quotes, see why they matter, and jump directly to hear them. • Practice with animated flashcards and quizzes that explain the correct answers. • Generate each learning section when you need it, with richer material for longer episodes. • Keep your learning material synced across devices, including for archived episodes. Knowledge is included with CastKeeper Unlimited. FIND MORE. UNDERSTAND MORE. Search in plain language with Siri AI. Find episodes by topic, explore searchable transcripts, navigate Smart Chapters, and get a Smart Summary before you press Play. With CastKeeper Unlimited, get deeper summaries and Catch Up recaps that remind you what was happening before you resume. Supported AI features use Apple’s Private Cloud Compute when available, with on-device Apple Intelligence as a fallback. YOUR LISTENING IS YOUR BUSINESS No advertising in the app. No listening analytics. No account required to listen. Tracking Prevention helps reduce podcast tracking requests, while your archives stay in storage you control. CASTKEEPER FOR EDUCATION Eligible students and educators can verify their school email to unlock CastKeeper Unlimited for $0.99. School not listed? Submit it for review. PODCASTS ARE FOR EVERYONE VoiceOver, Dynamic Type, Live Captions, a dyslexia-friendly font, high-contrast options, mono audio, and keyboard navigation help make CastKeeper work your way. FREE TO START. YOURS TO KEEP. Enjoy a complete podcast player for free. Unlock more with a one-time CastKeeper Unlimited purchase, with Family Sharing support and no recurring charges. AI features require compatible hardware and software. Siri AI requires iOS 27 or later. Availability varies by device and settings. Your podcasts. Yours forever.
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Verdict
The clearest difference is in-app purchases: DeepFox at none against CastKeeper For Podcasts's 1. DeepFox also leads on iOS requirement (12.0 vs 26.0). On price, ads and device support 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
Both are free to download. CastKeeper For Podcasts sells 1 one-off in-app purchase. DeepFox asks for nothing beyond the download.
| Parameter | DeepFox | CastKeeper For Podcasts |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 33 MB | 91 MB |
| Age rating | 4+ | 12+ |
| Developer | ZHONGYUAN ZHU | 121 Gigawatz |
In-app purchases
DeepFox
No in-app purchases
CastKeeper For Podcasts
- CastKeeper Unlimited$1.99









