Quill: AI Book Reader

Yugen Tech

In-app purchases

About this app

Quill is a reading app built for people who care about books.

Powered by the Readium EPUB engine, Quill gives you a smooth, scrollable reading experience with clean typography and precise layout control, the
kind of environment that actually lets you disappear into a book.

Quill connects directly to Standard Ebooks, the gold standard for free
public domain literature. Every title in their catalogue is meticulously
formatted, beautifully typeset, and carefully proofread and miles ahead of
the raw scans you find elsewhere. Alongside that, the full Project
Gutenberg library of 70,000+ classics is right at your fingertips.

At the heart of Quill is Aira, your on-device AI reading companion. Aira
indexes your books locally using a retrieval-augmented pipeline, then
answers your questions with genuine comprehension grounded in the actual
text. No summaries from the internet. No generic responses. Just honest,
book-aware conversation and your data never leaves your device.

What Quill offers:
- Scrollable EPUB reader built on the Readium SDK
- Standard Ebooks catalogue free, beautiful, properly made
- Project Gutenberg 70,000+ classics to discover and download
- Aira on-device AI that reads your books with you
- Reading insights: streaks, stats, and reading patterns
- Clean Material 3 design with no clutter

What’s new

A couple of bugs fixed and AI Assistant is now more capable, intelligent and best of all more friendly.