片讀

Ryan Chen

About this app

PianDu is your AI reading companion. Import your EPUB ebooks, and AI will help you deeply understand each book—whether vertical or horizontal, and enjoy smooth reading on your phone or a foldable screen.

【AI Reading Assistant】

- AI Q&A: Ask questions about anything in the book, and AI will answer instantly (anti-spoiler mechanism: only answers based on content from chapters you've already read, preventing spoilers).

- Previous Recap: When you open the book again, AI automatically generates five key sections for review, helping you quickly get into the story.

- Chapter Summary: Generate key points and new concepts for the current chapter with one click.

- Clues and Foreshadowing: Analyze foreshadowing and connections across chapters to discover easily missed details.

- Key Concepts: Automatically extract core concepts from the book to build your understanding of the entire text.

- Note Organizing: AI helps you categorize and organize underlines and notes.

- Book Map: View the entire book's structure and grasp the author's narrative thread.

【Reading Experience】

- Full support for EPUB vertical (portrait) and horizontal layouts.

- Optimized for foldable phones and tablets: Enjoy double-page reading when unfolded.

- Three reading themes: Light / Retro / Dark

- Customize font size, line spacing, and margins.

- Complete management of notes and bookmarks with four-color underlining

- Quick navigation to chapter lists

【Data Security】
- Books and notes are stored on your phone, ensuring privacy

- Supports Google Drive cloud sync, so you don't have to worry about losing them when switching devices (can be turned off at any time)

- No ads, no tracking