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GrainBook

Name: GrainBook
Availability: OnlineOnly
Author: TheoChen

An AI feed for everything you subscribe to

mobile app·free

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Launched

Jun 13, 2026

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What is GrainBook?

Subscribe to YouTube, podcasts, Reddit, RSS, Twitter, Bilibili, and Echo360 lectures — all in one AI-summarized feed. Skim a 30-second take on a 60-minute episode, then chat with your entire library: "what did I read about RAG?" Cited sources, your own LLM.

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Category: mobile app
Pricing: free
Launched: Jun 13, 2026
Views: 0

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