# Ggobook: AI PDF & EPUB Reader — Read, highlight & understand > Read, highlight & understand (iPhone/iPad app by Ggobook Tech.) - Source: https://appshunter.io/ios/app/ggobook-ai-pdf-and-epub-reader/id6757360802 (this page in markdown: same URL + `.md`) - Developer: [Ggobook Tech](https://appshunter.io/developer/1866361847) - Category: Books, Productivity - Price: Free with in-app purchases - Age rating: 12+ - Requires: iOS 15.3 · 251 MB - Languages: Korean, German (Germany), Russian, Vietnamese, Bangla, European Spanish, Arabic, American English, Italian, Indonesian and 11 more - Released: 2026-09-30 - Data updated: 2026-11-03 ## What is Ggobook? Read your PDFs and ebooks with AI explanations right alongside the text. Ggobook brings your files, highlights, notes and AI reading guides into one place. Read a novel, work through a report or explore a difficult passage with explanations alongside the text. READ YOUR BOOKS AND DOCUMENTS Keep PDF, EPUB, DOCX, HTML and Markdown files organized in folders. Move between your books and everyday documents in one reading space. GET AI HELP WHERE YOU READ Add AI explanations directly below the text or in separate explanation blocks. Keep the original passage in view as you explore its meaning. CREATE YOUR OWN AI READING GUIDES Tell the AI what you want help understanding. Shape a reading guide through conversation, save it and apply it to your reading. Keep useful guides for later. HIGHLIGHT WHAT MATTERS Mark passages in different colors and add personal notes. Give your ideas a place beside the words that inspired them. MAKE READING COMFORTABLE Adjust text size, spacing, fonts and themes to suit your reading style. Explore vertical reading for Japanese, Korean and Chinese text, and a spacious reading layout on tablets. READ AND SHARE TOGETHER Organize documents in shared folders and share helpful AI reading guides with your group. DISCOVER CLASSIC BOOKS Browse the library and add a classic to your own shelf. Available titles and languages vary. MORE ROOM FOR YOUR READING Continue with more AI support and room for your documents. Explore subscription plans with higher AI usage and storage allowances. Features and limits vary by plan; see the app for current details. Start with a book or document you want to understand. Ggobook. Slow steps, deeper understanding. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Ggobook Basic | $9.99 | per month | | Ggobook Pro | $19.99 | per month | ## Is Ggobook safe? Not enough ratings yet to assess Ggobook. ## Is Ggobook legit? Ggobook: AI PDF & EPUB Reader has limited verification signals. The AppsHunter Legitimacy Score for Ggobook is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 1.5 — 2026-10-31 New in Ggobook 1.5: • Recognize text in scanned PDFs on your device before uploading. • Add a wooden bookshelf widget to your Home Screen. • Continue Read Aloud in the background, with picture-in-picture and system playback controls. • Read together in groups, choose to share progress and find joined sessions more easily. • Customize reading settings for each book, page and text colors, and page-turn sound and vibration. • Pin reading tools to the bottom and dictate text into notes. Library browsing and text selection are also improved. Availability varies by device, language and subscription plan. ### 1.4 — 2026-10-22 What's new in 1.4 • A more capable editor: insert images and links, undo and redo edits, and use on-device AI for formatting, proofreading, summaries, and translation. • Organize folders and move or delete multiple documents at once. • Keep up with group announcements and notifications about shared content. • View formulas more clearly in newly imported HTML, Markdown, and DOCX documents. • Long-press the app icon to continue reading, import files, search documents, or start writing. • Improved text selection, keyboard behavior, and editor responsiveness. On-device AI requires Apple Intelligence to be enabled on a supported device and supports selected languages. ### 1.3 — 2026-10-15 Ggobook 1.3 makes it easier to bring in new reading material and keep track of your AI tasks. • Turn web articles into documents Import the main text from supported web pages to save and read as a document. • AI generation progress and history Check guide generation progress and recently completed or failed tasks in one place, then open completed results directly. • Preview before adding a book Where a preview is available, read the opening text of a library book before adding it to your bookshelf. • More faithful text display Improved Japanese punctuation, emphasis marks and text formatting that preserves the original spacing. • Improved image links Links attached to images in the text now work more reliably when opening another location in the document or an external web page. Some features require a subscription. Availability varies by subscription plan. ### 1.1 — 2026-10-01 Welcome to Ggobook! We're continuing to improve your reading experience with new ways to read, listen, and share. What's new: • Read aloud with adjustable playback speed. • View PDFs in their original layout and DOCX documents in PDF mode. • Share folders and documents with your reading group. • Share links to documents, reading positions, and reading guides. • Easily revisit recent documents and searches. Some features require an eligible subscription. Thank you for being part of Ggobook's early journey. We welcome your feedback as we continue to grow and improve together. ### 1.0 — 2026-09-30 No release notes. ## Apps similar to Ggobook | App | Rating | Price | Category | | --- | --- | --- | --- | | [縦書きEbookViewer](https://appshunter.io/ios/app/ebookviewer/id6823066434) | — | Free | Books | | [iLib - Read Listen Learn](https://appshunter.io/ios/app/ilib-read-listen-learn/id6785369293) | — | Free | Books | | [Audioblio:Audiobooks Listening](https://appshunter.io/ios/app/audioblioaudiobooks-listening/id6754856610) | 3.0 (2) | Free | Books | | [Namo eBook Reader](https://appshunter.io/ios/app/namo-ebook-reader/id1501449940) | 2.0 (2) | Free | Books | | [Audiobook Player: MP3 M4A M4B](https://appshunter.io/ios/app/audiobook-player-mp3-m4a-m4b/id6758897043) | 4.7 (20) | Free | Books | | [BookShelves eBook Reader](https://appshunter.io/ios/app/bookshelves-ebook-reader/id6756848973) | 3.8 (19) | Free | Books | --- *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 2026-11-03.*