Shelfieline

Your private study, in your pocket.

Shelfieline is an iPhone / iPad app that turns reading from a list-management chore into a personal experience. We've recreated a real bookshelf in digital form — spine textures, varying book heights, the heft of the shelf itself, all carefully redrawn. The dark, "private den" aesthetic is built for readers who care about how their library looks.

▼ Key Features

【Study Carousel】Multiple bookshelves arranged side-by-side. Swipe left and right to switch. Adjacent shelves peek in from both sides so you see your whole collection at a glance.

【Bookshelf Detail】Your books displayed as realistic spines. Pinch to zoom — rows recalculate automatically based on book count. Letterpress-style title and author detail, with paper / cloth / leather material rendering for each book.

【Three Ways to Add Books】
・Scan ISBN barcode (auto-fills bibliographic info)
・Manually enter title / author
・Share a cover image from Safari → assign to a book in-app

Cover images are captured by your camera or chosen from your photo library. No automatic third-party fetching — the choice is always yours.

【Reading Status】
・Four states: want to read / reading / finished / stockpile
・Page progress slider (for books in reading state)
・5-star rating (for finished books)
・Calendar entry for start / finish dates

【Reading Diary】
・Multiple notes per book
・Grouped by month for easy review
・Optional photo attachment (quoted pages, related notes)

【Shelf Memo】
・Free-form text memo per shelf
・Attach as many photos as you like (interesting pages, bookstore shelves, bookmarks)

【Reading History (bank-passbook style)】
・Per-shelf timeline of "book added / started / finished / note written"
・Running holdings count, like a real passbook

【Shelf Materials & Wallpapers (Pro)】
・6 shelf materials: Walnut, Ebony (Free) + Oak, Maple, Teak, Mahogany (Pro)
・5 wallpapers: Plain (Free) + Linen, Wood Panel, Dark Concrete, Leather (Pro)
・Mix and match per shelf

【Home Screen Widgets (Pro)】
・Glance at your library size and books finished. Small / Medium sizes

【Share Shelfie! — new in v1.3】
・Render your shelf as a portrait-format image and share to Instagram Stories / X / Threads / TikTok
・Captures the full ambience: shelf materials, wallpapers, all rendered. Pacifico script logo.

【Flat View — new in v1.3】
・Toggle between spine view (the main study) and a cover-grid view
・Useful for visually scanning what books you have

【Organize Mode — new in v1.3】
・Tap multiple books to select, then move them to another shelf in bulk
・Great for re-categorizing after creating new shelves

【Pinch to Zoom + Drag to Reorder】
・Two-finger pinch zooms the bookshelf; row layout recalculates with book size
・Long-press a book to lift it, drag to reorder
・A floating cover preview appears while dragging, so you don't lose track

▼ Privacy

・All data is stored on your device (SwiftData; no iCloud sync planned)
・No data sent to third parties; no user tracking
・No account registration; no email collected
・Cover images are obtained only by your camera or photo library selection
・Bibliographic info uses only the official openBD and National Diet Library Search APIs

▼ Design

Built around the idea of a "private den," with a neon-sign launch screen reminiscent of an underground bar, a pure-black background that lets the books float, and a choice of walnut or ebony shelf themes. Spines render in three materials (paper / cloth / leather), with details like gold-foiled titles, ribbon bookmarks, and weathering for a sense of presence.

▼ Plans

・Free: up to 3 bookshelves / up to 30 books / all features (Walnut & Ebony materials included)
・Pro Plan (one-time ¥980): unlimited shelves and books + 4 shelf materials + 4 wallpapers + Home Screen widgets

▼ Requirements

iOS 17 or later, iPhone or iPad. iPhone XS or newer recommended for barcode scanning.

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YOU ARE WHAT YOU READ.