Three platforms, three experiences.

The full workspace.

The Mac version takes everything the platform offers. Keyboard shortcuts for anything you do often, resizable panels, drag-and-drop just about everywhere, Book Card windows that float above the app, and an island design borrowed from Apple’s System Settings — rounded panels on a recessed window background.

• Table viewSortable columns, column customization, two-level hierarchy, full-width actions toolbar above the table
• Chapter mapA proportional track where taller chapters are literally taller, with a sliding viewport indicator. If you’ve used the minimap in a code editor, you already know the idea — applied to a book instead of a source file.
• Keyboard shortcutsFor everything: Cmd+B to bookmark, Cmd+F to search, Cmd+G for the progress drawer, F2/F3/F4 for panels, Space for quick preview
• Resizable info panelThree-island layout that remembers its width between sessions
• Custom library locationPoint the app at any folder on your Mac or external drive
• Portable libraryThe whole library is one self-contained folder — copy it anywhere for a backup, or point the app at a custom location
• Three reading modesScroll, Page, or Two pages — switch from quick settings (F9) mid-book, position is preserved

The version to use when you have a keyboard, a chair, and time.

The pocket reader.

The iPhone version is streamlined, not stripped. Everything that earns its place on a small screen is here; the things that don’t — the table view, the floating panels, the two-page spread — sit it out, because cramming them in would only make the app worse. In their place: quick settings, tap zones, fullscreen reading, and native sheets.

• One-hand friendlyControls and swipes within thumb’s reach. Two page-turn modes — top/bottom for one thumb or left/right for two — and a “Show tap zones” overlay that draws them onto the page so you never have to guess.
• Native sheetsDifferent heights for folders, settings, filters — instead of separate windows.
• Always full screenThe page takes the whole screen; the bar with the clock, the progress and the battery is a setting. Two active corners: the bottom-left opens settings, the bottom-right navigation as tiles.
• Clock and progress over the pageA small pill at the bottom of the screen keeps the time and how far you are — for anyone who has ever lost track of both
• Rows tighten as the list grows, and the card grid runs two to four columns — five on the widest phones.
• Gesture navigationEdge swipes, swipe-to-dismiss sheets. iOS the way iOS should work.
• Two reading modesScroll or Page — switch in Settings, position is preserved