Features

Themes are more than color schemes. Each defines background, text color, progress bar tint, and bookmark marker palette. The Featured ones go further — they bring their own typeface, signature frames, and custom progress indicators built into the theme’s identity, not just a color tweak.

• Palettes Five families — Neutral, Ochre, Celestial, Lime, Rose — each with seven tonal variations: a pure-white extreme on the left, five mid tones in between, and a pure-black extreme on the right. The extremes carry the palette’s signature color in saturated text on plain white or black — built for full sun on a beach or pitch-dark bedrooms.
• Featured Typewriter (ivory + dark brown, light and dark variants, locked to American Typewriter — leans into a quiet steampunk vibe with a brass dashboard speedometer whose needle rolls as you read, swapped for a vintage radio-dial carriage with a lit red pointer on narrower screens; copper-rim keycaps; mechanical drum-counter read-outs) and Terminal (white monospace on deep blue, locked to Menlo / Courier New, Norton Commander homage). Both come with their own independent typography and layout settings.
• CustomThree user-defined slots with full color picker control
• Day & Night mode Assign separate themes for light and dark system appearance — automatic or manually overridden

The reader carries three independent appearance contexts — Regular, Typewriter, and Terminal. Each remembers its own font, size, line height, padding, alignment, and navigation mode, so a tweak made inside Terminal won’t follow you back to Ochre.

All system fonts — no downloads, no licensing, no rendering differences between devices.

• SerifGeorgia, Palatino, Charter, Iowan Old Style
• Sans-serifHelvetica Neue, SF Pro, Avenir Next
• MonospaceMenlo on Mac, Courier New on iOS; American Typewriter everywhere

The font picker groups them with labeled sections and applies your choice to the page instantly. Where the typeface supports them, you also get weights — thin, regular, and bold.

• Size12 to 48 pixels
• Line heightContinuously adjustable, from tight to spacious
• Paragraph spacingContinuously adjustable from 0.3 to 2.4 em
• Text indentToggle first-line indentation
• AlignmentLeft, justified, or right
• HyphenationAutomatic when justified, with content-based language detection for Latin, Cyrillic, CJK, Arabic, and Greek scripts
• Page paddingContinuous slider from edge-to-edge to generous margins
• Image displayShow, mask (reveal on hover), or hide entirely

Every setting applies instantly — no page reload, no position lost.

The default reader renders the book as a single continuous page — no artificial breaks, just smooth vertical scrolling.

Switch to Page mode for a paginated experience with animated or instant page turns. Page separators are configurable — clean lines or a soft shadow. On Mac and iPad (in landscape), Two pages mode renders a classic book spread. All three modes preserve your exact position when switching.

Your reading position is tracked more precisely than most readers bother with — which means it survives:

• Font changesSize, family, line height
• Window resizesFull layout reflow
• Device switchesMac to iPad, iPad to iPhone — ContinuousReader with sync enabled
• Mode switchesScroll to page, page to spread
• Long absencesReopening the book weeks later with different settings

When you return to a book, the reader fades in at the exact paragraph you left, not the nearest chapter.

One caveat: settings that change how many pages a book has — font size, line height, paragraph spacing, two-page spread — can nudge the exact spot by a line or two. The reader anchors to the first paragraph visible on screen, so you keep your place even when the page count shifts under it.

A slim progress bar along the bottom expands on hover (Mac) or tap (iOS) to reveal reading position. Click or double-tap to open the progress drawer:

• Tapered sliderA custom track that’s thick for the part you’ve read and hair-thin for what’s ahead, with a smooth S-curve at your current position
• Entry markerA dot with a dashed ring showing where you started this session
• Marker modesSwitch the track to show chapters, images, bookmarks, or nothing. Chapter markers show titles on hover. Image markers show thumbnail previews.
• Go ToDirect jump to a page or percent — just enter the value

In ContinuousReader, bookmark markers are color-coded and show preview text and page number on hover.

Chapter structure is extracted on import — with proper heading priority and scene-break separator filtering (* * *, ---, etc.).

The Chapters tab in the side panel lets you jump to any chapter with one click. On Mac, you can switch between two display modes:

• Chapter listA static list with the current chapter highlighted and bolded
• Chapter map Proportional variable-height rows — taller rows for longer chapters — with a thin left rail track, a sliding thumb, and a viewport-proportional indicator. Page numbers are hidden in map mode for a cleaner spatial view.

If you’ve used the minimap in a code editor, you’ll recognize the shape.

Add a bookmark with Cmd+B or via the text selection context menu. The app captures your selected text as a preview, or — if nothing is selected — the first visible paragraph.

• Seven colorsTo categorize bookmarks (last-used color is remembered)
• NotesAttached to any bookmark
• Filter bookmarks by colorAppears when a book has two or more bookmark colors
• Highlights in the textEach bookmark tints its passage in the book — as if marked with a highlighter, in its own color
• Live markersOn the progress bar, with tooltip previews
• Nearest bookmarkHighlighted in bold in the side panel as you read

Bookmarks are available only in ContinuousReader.

Open in-book search from the Search tab in the reader’s bottom toolbar, or press Cmd+F. Match counter, previous/next navigation, case-sensitive toggle, and yellow/orange highlights in the text. Position markers appear along the scrollbar so you can see matches at a glance.

Search works the same way as translation, settings, and navigation — as a tab in the reader’s bottom toolbar, not a floating window that covers the text.

On iPhone, in fullscreen, the combined Go to… sheet wraps search with page-number and percent navigation behind one segmented control — type a value, pick a mode, jump.

Each book has a personal notes field with a rich text editor. The formatting toolbar supports bold, italic, underline, strikethrough, H1–H3 headings, bullet and numbered lists, blockquotes, horizontal rules, and four highlight colors (yellow, green, blue, pink). On iPhone, the toolbar splits into two rows to fit everything without scrolling.

Notes are stored with full formatting and rendered the same way in the side panel and in exported reports.

Tap the center of the reading area to hide the bottom bar and enter fullscreen. In scroll mode, only the physical edges of the device remain — text flows under the Dynamic Island or camera housing. In paged mode, the safe area is respected so each page reads as a clean rectangle. Tap the center again to exit.

In fullscreen, quick settings are reachable without leaving — a left bottom tap zone on iPhone, a tap-the-clock menu on iPad. Adjust theme, font, size, brightness without losing the page.

Precise navigation is available too — both a full marker-rich panel (chapters, images, bookmarks) and a quick drag-and-search sheet. Both work in fullscreen on iPhone and iPad. The mode auto-exits only when you open the side panel; translation stays in fullscreen via a floating panel.

Optional pixel-art clock shows the time as dotted numerals on the background of the page — adjustable position and contrast, visible enough to check at a glance, unobtrusive enough to ignore while reading. For anyone who’s ever lost track of time in a book and missed their stop.

Or a small island indicator floating at the bottom — clock and reading progress over a darker pill background.

Or a thin bottom bar version — clock and progress across the full width of the screen.

Highlight any word or phrase. Its translation appears in a panel along the bottom of the screen and stays out of the way while you read on. It never covers the text or pulls you out of the page — no popup, nothing to dismiss.

Three display modes in the panel:

• Translation onlyJust the translated text, maximally compact
• Side by sideSource and translation next to each other
• InterlinearThe translation directly under the original — each word under its source

Switch modes in the toolbar, or set your preferred default in settings.

• Many target languagesProvided by Apple’s on-device Translation framework
• Nothing leaves your deviceAll translation happens locally
• Selection menu reorderingTranslate and Bookmark sit at the top of the right-click / long-press menu by default. Reorder them in settings — whichever you reach for more often goes first.

Every word you look up can be remembered. ContinuousReader tracks:

• LanguagesThe languages you translate between, with frequencies
• Words seen beforeWith counts
• BooksWhere you translated the most
• Time-based activityWhen and how often you reach for translation

Tracking can be toggled any time. Turn it off and nothing is recorded. Turn it on and export the full history as an HTML report — useful for language learners, researchers, and translators.

Future: export to Anki or other flash-card formats, if there’s demand.

Built-in text-to-speech that reads from your current position. Not a separate mode — an extension of the same reading session.

• Position sync on openThe voice reader matches the paragraph you were visually on
• Position sync on closeThe visual reader scrolls to the paragraph the voice finished
• Word-by-word highlightingA soft rounded indicator glides from word to word, automatically keeping the current paragraph scrolled into view
• Transport controlsPlay/pause, skip forward/back, elapsed time, paragraph counter
• Adjustable speedContinuous slider with real-time effect — change speed mid-sentence and playback picks up from the exact word, not the nearest paragraph
• Pitch and voiceInline pitch slider, voice picker with Auto language detection or manual selection. Disabled during playback to prevent disruption — pause, adjust, resume.
• Theme integrationAll controls, progress bar, and word highlight use your current reader theme colors

• EPUBWith chapter extraction and embedded image handling
• FB2 / FB2.ZIPWith automatic genre code mapping (~170 codes)
• MOBIVia a native decompressor
• HTML / HTML.ZIPWith HTML sanitization and encoding detection
• TXT / TXT.ZIPWith encoding detection
• RTF / RTF.ZIPStreaming parser
• DOC / DOCXWord documents (Mac)

Embedded images are extracted, compressed to JPEG under 500KB at max 1200px, and stored alongside the content. Importing images is your choice, per book — on by default, off if the author overdoes it or you want to save space (the choice is remembered). Once imported, images in the reader can be shown, masked (revealed on hover), or hidden entirely.

• BrowseNative file picker with filter for all supported extensions
• URLPaste a download link and the app fetches, validates, and imports the file
• Drag and dropDrop a file onto the library. Or drag a URL straight from your browser’s address bar — the book is fetched and the import dialog opens with metadata, cover, and author already filled in. You skip the copy-paste-open-import-paste-fetch dance, but you still see the book before it joins the library.

On Mac, the import dialog has a persistent tab switcher (This Mac / URL / Drop) remembered between sessions.

In JustReader, importing replaces the current book. In ContinuousReader, books join the library.

Import an existing collection in one pass (macOS). Point ContinuousReader at folders and files and it converts everything at once.

• Recreate the folder structureThe source directory tree becomes nested virtual folders, merging into folders that already exist
• Choose the destinationThe current folder, the library root, or any folder — the structure nests under your choice, or books go straight in
• Skip duplicatesMatched by author and title, so re-importing a collection won’t pile up copies
• Color tag and imagesApply a color tag and choose whether to keep cover images and inline illustrations
• Drag and dropDrop a folder or several files onto the library to start it; a single file opens the regular import dialog
• Summary at the endHow many imported, folders created, duplicates skipped, total size, and any errors

When you import a book into ContinuousReader, you can set its metadata before it enters the library:

• Duplicate detectionAgainst the existing library, showing where the duplicate already lives
• Cover previewShown from the book’s own metadata — replaceable later from the Book Card
• Metadata previewDetected title, author, series, publication date, language
• Color tagAssignment
• Genre chip pickerManual genre editing
• Folder assignmentContext-aware — uses the current folder when browsing one, otherwise none
• Origin URLStored for later "In Library" detection in OPDS
• Image inclusion toggleFor FB2/EPUB/MOBI (strip images if you prefer text-only)
• Open after importCheckbox

JustReader skips this dialog — pick a file, start reading.

• 5 MBWarning banner, import proceeds
• 50 MBLarge-file threshold on Mac (30 / 60 MB on iPhone / iPad) — you can import anyway, or without images
• 100 MBDecompressed-size threshold for ZIP / EPUB archives (75 / 150 MB on iPhone / iPad)

Browse online book catalogs with a native interface.

• Default catalogsStandard Ebooks, Project Gutenberg, Feedbooks — ready to use
• Custom catalogsAdd your own OPDS server with Basic Auth support
• Feed navigationWith breadcrumb trail and middle truncation for long paths
• Server-side searchUsing the catalog’s OpenSearch template when available
• Local filter At the top of every feed — instantly filters visible items by title, author, or summary as you type
• Cover thumbnailsWith native caching
• "In Library" badgeFor books already imported
• Batch import queue With folder assignment, color tags, and format selection
• Single import With post-import options

Two features that make OPDS browsing more than a one-time lookup.

• ShortcutsBookmark any feed for one-click navigation. Useful for favorite author pages, series, or collections.
• WatchersTrack series or author feeds for new entries. Toggle an eye icon on any acquisition feed to start watching. "Check" detects new additions manually. Color-coded status: green when all entries are in your library, orange when new ones appear. Delete a catalog, and all its shortcuts and watchers are cleaned up.