Sutra — Read everything. Books and comics.
EPUB · COMICS · OPDS · WEBDAV · iOS
Sutra
A thread that binds your books
Sutra — the app to read all your DRM-free content. Connect your Kavita, Calibre, Komga, or WebDAV server, any OPDS catalog, or Project Gutenberg's full public-domain library. Load local files, read manga and comics panel by panel, track your reading stats, and auto-scroll through long reads.
Free on the App Store · Preview any comic or MOBI free · Sutra Pro unlocks .cbz, .mobi & Komga<br>Where to legally buy DRM-free books →
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See it in action
4 screens
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01 · library
02 · panel comics
03 · auto-scroll
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04 · Sutra Pro
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What's inside<br>Twelve things, done properly.
Bring your own server<br>Connect Kavita, Calibre, Grimmory, or any OPDS-compatible server in a few taps. Works on your local network — no cloud middleman. WebDAV hosts like Synology are supported too.
Gutenberg & Standard Ebooks<br>Project Gutenberg's 75,000+ public-domain classics and Standard Ebooks' typeset collection — no server required. Patrons Circle sign-in unlocks the full Standard Ebooks catalog.
EPUB, PDF & mobi<br>Authentic page-curl, rich typography controls, five reading themes (including high-contrast Contrast), bookmarks, in-book search, and color-coded highlights synced via iCloud. Two-panel facing-page spread on iPad.
Panel-aware comics & manga<br>Sutra detects panels and reads them one at a time. Full manga mode reads right-to-left with panel order that flows top-right to bottom-left. Page-curl animation and dedicated manga panel tuning. Switch any book between Regular and Manga from the reader's Aa menu — remembered per book.
Auto-scrolling<br>Set your pace and let the page flow — tap to pause, tap again to resume. Speed is adjustable from the reading settings. Perfect for hands-free reading.
Sideload local files<br>Open EPUB and PDF files directly from your phone — from your Files app, AirDrop, or any share sheet. No server required.
Highlights & Dictionary<br>Select text to highlight with color, double-tap a word to define it instantly — both sync across your devices via iCloud and are saved for later.
Pick up where you left off<br>iCloud syncs reading position, bookmarks, and highlights across all your devices. Kavita sync is page-accurate in both directions.
Browse by series<br>Books organize by series in the Collections Shelf based on metadata from your server — perfect for long fantasy and sci-fi runs.
WebDAV Servers<br>Browse and download EPUB and PDF files straight from any WebDAV host — Synology, or any server you run. Self-signed certificates are supported via a one-time trust prompt, no HTTPS workarounds needed.
Reading Statistics<br>A dedicated Stats tab tracks time read, your current streak, a swipeable activity chart, and reading progress across every book in your library — all in one place.
Try Before You Buy<br>Every CBZ comic and comic-shaped MOBI book opens with a free 7-page preview — read the first 7 pages of anything in your library before deciding whether to unlock Sutra Pro.
Where can I legally buy DRM-free books?
Sutra works with files you own outright — no DRM, no lock-in. We've put together a curated list of stores and publishers that sell ebooks the right way: you pay, you download, you keep the file forever.
Browse our curated list →
Sutra Pro<br>One price. All the extras. Forever.
Free forever<br>Everything you need to start reading
All OPDS servers — Kavita, Calibre, Grimmory, and more
Project Gutenberg & Standard Ebooks catalogs
EPUB & PDF reading with full typography controls
Panel-aware comic and manga reading
7-page free preview of any CBZ or MOBI book
EPUB auto-scrolling
Sideload files from your phone
Color highlights synced via iCloud
Dictionary lookup, bookmarks, and in-book search
Series collections and smart sorting
WebDAV server browsing and downloads
Reading statistics — time read, streak, activity chart
Offline downloads and storage manager
Dark mode, left-handed page turns, Reduce Motion
Sutra Pro<br>Unlock more formats and Komga
$6.99
One-time purchase · No subscription · Yours forever
Native Komga server integration with page-accurate progress sync
.cbz comic archives — read comic archives in a fixed-layout, zoomable page reader
DRM-free MOBI books — read .mobi files you own
Unlock Sutra Pro →
Only DRM-free files are supported. Sutra is for content you're legally entitled to read and doesn't endorse piracy. Where to legally buy DRM-free books → Sutra Pro is a one-time purchase tied to your Apple Account.
Where it's headed<br>Built in the open, one version at a time.
1.0<br>Shipped
Kavita, Calibre, and OPDS server support
Project Gutenberg one-tap catalog
EPUB + PDF reading: themes, fonts, bookmarks, search
Offline...