You have a stack of .cbz or .cbr files — maybe digital comics you bought DRM-free, manga volumes you downloaded, or a graphic novel from a Humble Bundle. You tap one on your iPhone. iOS either tries to unzip it into a folder of loose images or just refuses to open it.
That’s because iPhones and iPads have no built-in support for comic book archives. Apple Books doesn’t recognize them. The Files app treats them as compressed folders, not as sequential art meant to be read page by page.
Here’s how to actually read them.
What Are CBZ, CBR, and CB7 Files?
Comic book archives are compressed folders of sequential images, one per page. The file extension tells you the compression type:
| Format | Extension | Compression | Notes |
|---|---|---|---|
| CBZ | .cbz | ZIP | Most common, widely supported |
| CBR | .cbr | RAR | Legacy format, still widely used |
| CB7 | .cb7 | 7-Zip | Less common, best compression |
Each archive can also include a ComicInfo.xml file with metadata: title, author, series name, issue number, genre, and more. Reader apps that parse this file can organize your collection automatically.
These formats are the standard for digital comics, manga scans, and graphic novels outside of platform-specific stores like ComiXology or Kindle.
Comics and manga on your iPhone and iPad
BookShelves reads CBZ, CBR, and CB7 files alongside your ebooks. Right-to-left mode for manga.
Comic Reader Apps for iPhone and iPad
BookShelves (Comics + Ebooks in One Library)
BookShelves reads CBZ, CBR, and CB7 files natively on iPhone and iPad. No conversion, no plugins, no separate comic reader app. Your comics sit alongside your EPUBs, PDFs, and Kindle files in one library.
How to get started:
- Download BookShelves from the App Store
- Tap the + button and choose Add Books, or open a comic file from the Files app and share it to BookShelves
- Start reading
What you get:
- All three formats — CBZ, CBR, and CB7, no conversion needed
- ComicInfo.xml support — title, author, series, and issue metadata are imported automatically
- Manga mode — right-to-left page order, auto-detected from metadata or toggled manually per book
- iPad spread mode — two-page display in landscape, like holding a physical comic open
- Tap and swipe navigation — tap the edges of the screen or swipe to turn pages
- Full-screen reading — distraction-free viewing on any screen size
- One library — comics alongside your books, organized however you want
- iCloud sync — your comics, reading positions, and bookmarks sync between iPhone, iPad, and Mac
- Security built in — archive validation protects against malformed files (path traversal checks, size limits, compression ratio limits)
BookShelves treats comics as first-class citizens. They live in the same library as your ebooks, sync across devices, and get the same organizational tools.
Panels
Panels is a dedicated comic reader for iOS with a polished interface. It supports CBZ, CBR, and PDF comics, and connects to OPDS servers for downloading from online libraries.
Pros:
- Well-designed comic reading experience
- OPDS catalog support
- Smart panel navigation (guided view)
Cons:
- Comic-only app, separate from your ebook reader
- No CB7 support
- Subscription pricing for full features
Chunky Comic Reader
Chunky is a free iPad-focused comic reader with support for CBZ, CBR, PDF, and EPUB comics. It can pull files from cloud storage or a local network server.
Pros:
- Free with no subscription
- iPad-optimized layout
- Network and cloud storage import
Cons:
- iPad only, no iPhone version
- Interface feels dated
- No iCloud library sync
YACReader
YACReader is the iOS companion to the open-source desktop comic reader. It connects to YACReaderLibrary running on your computer to stream and download comics.
Pros:
- Server-based library management
- Reading lists and progress sync with desktop app
- Handles large collections well
Cons:
- Requires running a server on your computer
- Comics-only, no ebook support
- Setup is more complex than standalone apps
Getting Comic Files onto Your iPhone or iPad
Before you can read a comic, you need to get the file onto your device. The process is the same as for any document on iOS:
AirDrop from a Mac
Right-click the .cbz or .cbr file in Finder, select Share > AirDrop, and choose your iPhone or iPad. When the file arrives, tap it and choose Open in BookShelves.
iCloud Drive or Cloud Storage
Save your comics to iCloud Drive, Dropbox, Google Drive, or OneDrive from any computer. On your iPhone, open the Files app, navigate to the file, and tap it. From the share sheet, choose your reader app.
Download in Safari
If you’re downloading comics from a website, Safari saves the file to your Downloads folder in the Files app. Find it there and open it in your comic reader.
Import from a Calibre Library
If you use Calibre to manage your comics on a desktop, you can transfer them to BookShelves via AirDrop or iCloud Drive. Calibre can also serve files over your local network.
Reading Manga: Right-to-Left Mode
Manga is read right to left, the opposite of Western comics. If your reader doesn’t support RTL page order, you’ll be reading every volume backwards.
BookShelves handles this in two ways:
- Auto-detection. If the comic’s
ComicInfo.xmlmetadata specifies a right-to-left reading direction, BookShelves switches automatically. Many manga files include this metadata. - Manual toggle. For files without RTL metadata, you can toggle manga mode per book from the layout options in the reader. The setting is saved, so you only set it once per title.
When manga mode is active, everything reverses to match the reading direction: tap zones (left side advances, right side goes back), swipe gestures, arrow keys (on iPad with a keyboard), and page order in spread mode.
On iPad, spread mode in manga displays the right page first and the left page second, matching the physical reading order of a Japanese tankoubon.
iPad Spread Mode
iPad’s larger screen makes it ideal for comics. In landscape orientation, BookShelves displays two pages side by side in spread mode. This replicates the experience of a physical comic or manga, where artwork often spans across facing pages.
Spread mode works with all three comic formats and respects the reading direction. Western comics display left-to-right; manga displays right-to-left with pages paired correctly.
Where to Find Free Comics
Several sources offer free, legal digital comics:
- Digital Comic Museum — thousands of public domain Golden Age comics in CBZ format
- Comic Book Plus — public domain comics from the 1930s to the 1960s
- Internet Archive — large collection of scanned comics and graphic novels
- Independent creators — many indie comic artists sell DRM-free CBZ files through Gumroad and itch.io
Which Format Should You Use?
If you’re downloading comics and have a choice of formats:
- CBZ is the safest bet. ZIP is universal, every comic reader supports it.
- CBR works but requires RAR decompression support, which not all apps include.
- CB7 offers the best compression but has the least reader support across apps.
BookShelves handles all three, so format choice doesn’t matter if that’s your reader. If you’re sharing files with friends or planning to switch apps later, CBZ is the most portable option.
Related Guides
- How to Read Comic Books on Mac (CBZ, CBR, CB7) — the Mac companion to this guide
- How to Read EPUB Files on iPhone and iPad — getting started with ebooks on iOS
- EPUB vs PDF — how ebook formats compare to comic book formats
- Where to Buy DRM-Free Ebooks — stores that sell content you actually own
- 30 Best Free Classic Books — free public domain ebooks to read alongside your comics
