Sumi Book
Your private fancy library
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Sumi is a beautifully crafted, native reader for the books, manga and comics you already own or have the right to read.
Sumi comes empty by design. It includes no catalog, no content, and no built-in sources — you decide what to read. Import your own files, or add a source by pasting the web address of a site you are entitled to access. Sumi is the elegant reading experience on top; the library is yours.
A READER, NOT A LIBRARY • Ships with zero content and zero pre-loaded sources • Import your own files (.cbz / .zip) straight from the Files app • Add your own source — nothing is bundled
DESIGNED FOR READING • A refined dark interface made for long sessions • Smooth paged and continuous (webtoon) reading modes • Right-to-left support for manga • Remembers your place across your whole collection
NO ADS, EVER Sumi shows no advertising. The reading view is just the page — nothing between you and your story.
PREMIUM Unlock the full experience: • Incognito mode — read without saving history or progress • App Lock — guard your library with Face ID, Touch ID, or a passcode • Backup & restore — export and recover your entire collection • Premium themes — including the dusk-rose Sakura palette • Offline downloads — keep what you're reading with you
YOUR RESPONSIBILITY Sumi is a neutral reading tool. It is not affiliated with any website, publisher, or content, and cannot guarantee the availability of any third-party source. You are responsible for ensuring you have the right to access whatever you add. Please support the authors and publishers you love.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Reader: brightness, colour filters, page scrubber, 3-mode double-page, auto zoom reset.
Library: sorting, multi-select, compact grid, new-chapter badges.
Title page: author, genres, read/unread filter, manual refresh.
Settings: system theme, image cache clear, reading stats.
Sources: clearer errors, auto-sync.
Shelves: rename your custom shelves.
Thank you for reading with Sumi.
The developer, Oktay Demir, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Oktay Demir
- Size
- 51 MB
- Category
- Books
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 7 more
- English, French, Indonesian, Japanese, Portuguese, Spanish, Thai, Turkish
- Age Rating
18+
- 18+
- Infrequent
Cartoon or Fantasy Violence
Contains
Unrestricted Web Access
Advertising
- In-App Purchases
Yes
- The Fine Press — Lifetime $49.99
- The Fine Press — Annual $24.99
- The Fine Press — Monthly $3.99
- Copyright
- © 2026 Sumi Book