# GrainBook: AI Content Reader — Podcast, YouTube & RSS Digest > Podcast, YouTube & RSS Digest (iPhone/iPad app by Yuan Long.) - Source: https://appshunter.io/ios/app/grainbook-ai-content-reader/id6754638202 (this page in markdown: same URL + `.md`) - Developer: [Yuan Long](https://appshunter.io/developer/1830417836) - Category: Productivity, Utilities - Price: Free with in-app purchases - Age rating: 17+ - Requires: iOS 16.4 · 155 MB - Languages: American English - Released: 2026-05-13 - Data updated: 2026-08-17 - User reviews in markdown: https://appshunter.io/ios/app/grainbook-ai-content-reader/id6754638202/reviews.md ## What is GrainBook? Turn every video, podcast, newsletter, and article you follow into a searchable AI knowledge feed. GrainBook brings your subscriptions together, summarizes new content, and lets you ask questions grounded in the sources you trust. Spend less time scrolling and keep more of what matters. Join 3,000+ active readers who use GrainBook to learn from the internet without drowning in it. ONE FEED FOR EVERYTHING YOU FOLLOW • Follow or save content from YouTube, podcasts, Bilibili, X/Twitter, Reddit, RSS, newsletters, ebooks, and web pages • See new releases in one calm, personalized feed • Discover creators worth following across topics you care about AI SUMMARIES THAT SAVE TIME • Turn long videos, podcast episodes, and articles into clear summaries • Choose the depth you need—from a quick take to a deeper read or transcript • Start your day with a digest of unread updates from yesterday ASK YOUR KNOWLEDGE • Ask questions across your subscriptions, notes, collections, and saved content • Use @ to focus GrainBook AI on a creator, source, collection, note, or individual item • Get answers grounded in your content, with citations that open the original source • Ask AI while reading, then continue the conversation in Chat SAVE WHAT MATTERS • Save important insights and organize them with collections and tags • Search your library and revisit your reading history • Keep every original source one tap away HOW IT WORKS 1. Subscribe to a source or save a link 2. GrainBook fetches, transcribes, and summarizes new content 3. Read the essentials, ask follow-up questions, and save what matters Start free and turn information overload into a knowledge habit. GrainBook offers optional auto-renewing subscriptions. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms: https://grainbook.app/terms Privacy: https://grainbook.app/privacy ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Grainbook Go (12-Months) | $44.99 | per year | | Grainbook Go (1-Month) | $4.99 | per month | ## Version history (last 5 releases) ### 1.0.8 — 2026-08-14 • Discover and subscribe to popular creators from YouTube, Bilibili, and X • Improved creator avatar loading and reliability • Enhanced the AI chat experience in the reader and fixed keyboard-related input issues • Improved source identification and subscription flows • Fixed bugs and improved overall stability ### 1.0.7 — 2026-08-12 • Mention subscriptions, creators, collections, notes, or individual items with @ for more focused answers. • Ask AI while reading articles, videos, or podcasts, then continue the conversation from Chat history. • Get a morning digest when you have unread subscription updates from yesterday. • Discover more recommended creators from YouTube, Bilibili, and X. • GrainBook Pro now includes 20,000 AI points per month. • Improved voice input, message actions, scrolling, dark mode, and overall stability. ### 1.0.6 — 2026-07-24 • Improved the RSS article reader for more reliable article loading and source navigation • Enhanced source display: platform icons now appear on covers, while channel, podcast, community, or creator avatars appear next to authors • Expanded English and Chinese localization across the reader, subscriptions, widgets, and share extension • Simplified loading states on the Subscriptions page • Fixed various issues and improved overall stability ### 1.0.5 — 2026-07-14 - Introducing a redesigned Points experience with clearer balances, activity history, and weekly usage insights. - Explore the refreshed GrainBook Pro page with improved benefit details and plan selection. - Improved refresh behavior and content status updates in Following. - Enhanced Reader stability and content display. - Improved back-button responsiveness on iOS. - General performance improvements and bug fixes. ### 1.0.4 — 2026-07-02 • My Subscriptions — A dedicated page to manage all your followed sources, with search, filtering, and a total subscription count • Redesigned Interests — The interest preferences page has been fully redesigned with separate view and edit modes for a more intuitive experience • Smarter Following Filters — Filter content by time range (day / week / month) and search directly within the Following feed • Unified Add Source Flow — Adding new content sources is now faster and more consistent, with a new bottom sheet UI and full Podcast source detail support • More Source Support — Improved ingestion reliability across YouTube, Podcast, RSS, Reddit, Twitter/X, Bilibili, e-books, and Echo360 • AI Chat Upgrades — AI chat now uses a more flexible model access layer, preparing GrainBook to support more models with more consistent behavior • New Lavender Theme — A fresh Lavender option joins a streamlined, localized theme list • Reader Enhancements — Tap to navigate to an author's profile from any article, with improved subtitle display, smoother scrolling, and an upgraded e-book upload sheet • Better Share Extension Reliability — Improved iOS share extension bundling and source handling for a smoother save-to-GrainBook experience • Backend Stability Improvements — v2 backend logic has been further aligned with v1 for ingestion, scheduled jobs, membership, payments, and AI workflows • Polished Interactions — Unified filter bar styling, consistent button press feedback, glass-effect action bar, and dozens of visual refinements throughout the app ## Related topics [grainbook](https://appshunter.io/ios/topics/grainbook) · [my knowledge base](https://appshunter.io/ios/topics/my-knowledge-base) · [itagtip](https://appshunter.io/ios/topics/itagtip) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*