Fusion Reader
Your books, understood.
An AI- and RAG-powered reading companion that turns any book into a conversation — ask questions, get instant context, and understand more of what you read.
Ask your books anything
Chat with an AI that has actually read the book — grounded, retrieval-augmented answers instead of generic guesses.
Every format, one library
EPUB, PDF, MOBI, FB2, and CBZ, all in a single fast, distraction-free reading experience.
Notes that stay with the text
Highlights, annotations, and AI-assisted summaries linked directly to the passages they came from.
Read anywhere
A native app for desktop and mobile, built to feel instant whether you are online or off.