Ridibooks

You are in line at a café, phone in hand, scrolling through a list of books you know you should read but haven’t started. The app you open next doesn’t just show you a library—it organizes your reading life around how you actually read: on the bus, in bed, between meetings, or deep into the night. Ridibooks is a full-featured ebook and webtoon platform built for Android 9 and above, designed to turn your phone into a distraction-free reading device with a store, a shelf, and a reading engine all in one app.

Core Reading & Library Tools

The app provides a complete ebook reader with adjustable typography, line spacing, and background color. You can switch between day mode, night mode, and sepia mode directly from the reading toolbar. Font size increments run from 1 to 100, giving precise control over on‑screen text density. The library view supports custom bookshelves, so you can group titles by genre, priority, or reading status. A built‑in search function scans both your library and the Ridibooks store simultaneously. The app also remembers the exact reading position across sessions, even if you close it mid‑paragraph.

Store & Content Discovery

The in‑app store offers a curated selection of Korean and international fiction, non‑fiction, webtoons, and web novels. You can filter by category, author, popularity, or release date. Each title page includes a preview mode that lets you read the first 10–20 pages before committing to a purchase. The store supports both individual purchases and subscription‑based access plans. Weekly and daily curated lists highlight new releases, editor picks, and genre‑specific trending titles. The search engine supports partial title and author name matching, with autocomplete suggestions as you type.

Reading Experience & Customization

The reading engine supports EPUB and PDF formats with full reflow support. You can highlight text in multiple colors, add sticky notes, and bookmark pages. A dictionary lookup function works offline for selected languages. The app also includes a vertical scrolling mode optimized for webtoons and long‑form articles. For night reading, the brightness slider goes lower than your device’s minimum system brightness, reducing eye strain in complete darkness. Text‑to‑speech playback is available for EPUB content, with adjustable playback speed from 0.5x to 3.0x.

Key Advantages at a Glance

• Customizable reading themes and fonts
• Offline dictionary and note‑taking
• Vertical scroll mode for webtoons
• Low‑light reading with extra‑dim brightness
• Store search with preview capability

Download Mobile App Now

Start reading smarter today. Get immediate access to thousands of books and webtoons, organize your personal library, and read with tools that adapt to your environment—not the other way around.

Technical Disclaimer

This app requires an active internet connection for store browsing, content downloads, and account synchronization. Some features, including full book purchases and subscription plans, involve in‑app payments. Offline reading of previously downloaded content is supported after initial download. Device storage is required for cached books and downloaded files.