YucDu 佑瑄｜iOS & iPadOSAvailable
YucDu iOS App User Guide
YucDu is a native reading app built for the blog yucdu.com. Articles are re-laid out with native iOS interface elements, so you can read and save them comfortably on iPhone or iPad — and re-read articles you've opened even when you're offline. This guide describes the version currently available on the App Store (2.0).
The five tabs
| Tab | What's there |
|---|---|
| Home | The latest articles (more load automatically as you scroll), plus sections such as Continue Reading, Recent Reading and Browse by Category. The layout depends on the Design you choose. |
| Explore | Find articles by Categories (expandable to subcategories) or by Archive (by year and month). |
| Library | Four sections: Continue, Favorites, History and Offline Reading. |
| Settings | Design, Appearance, Notifications, Data, Language, Service Status, Legal and version info. |
| Search | Search all articles by keyword; your recent searches are kept. |
note
Search is the system search tab. Depending on your iOS version, it may appear as a separate magnifying-glass button on the right side of the tab bar. On iPad and other wide screens, the tab bar turns into a sidebar.
Key features
- Native article view — articles are rendered section by section with native interface elements, with a table of contents, reading progress bar, font size control, full-screen image viewer, one-tap code copy, and support for blog layouts such as speech bubbles, steps and FAQs.
- Pick up where you left off — articles you're partway through appear under Continue Reading on Home and in the Library. When you reopen one, a Continue Reading button at the bottom takes you back to where you stopped.
- Library — favorites, reading history and offline articles all live in one tab. Favorites can sync via iCloud across devices signed in to the same Apple Account.
- Offline reading — articles you open are saved on your device automatically, so you can re-read them without a connection.
- Customizable look — 4 designs (Calm Reading by default), 10 color palettes, 6 theme colors, Light / Dark / Auto, 3 display styles and 3 font sizes.
- Sharing — share to LINE, X, Threads or Facebook, or use Copy Link or More (the iOS share sheet).
- In-app site links — links to yucdu.com inside articles open right in the app; external links open in Safari or another system app.
- Service Status — check inside the app whether YucDu's services are running normally.
Before you start
- No sign-up or sign-in. YucDu is a read-only reader with no accounts, comments or posting.
- The current version shows no ads and has no in-app purchases or subscriptions.
- Interface languages: 日本語, 繁體中文, 简体中文, English and Tiếng Việt. The app follows your device language; if none of your preferred languages is one of these five, the interface appears in Japanese.
- New article notifications are in preparation and are not being sent yet (see Notifications).
System requirements
Requires iOS 18 or later and runs on iPhone and iPad. Loading articles needs an internet connection; articles you open are saved automatically as offline copies.