Tsundoku vs Longbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tsundoku
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Tsundoku is a reader for manga, comics, and books in your personal Komga or Kavita library. Connect to your own server to browse your collection and read comfortably on iPhone and iPad. Features: • Browse libraries, series, collections, reading lists, and recent updates • Read image archives, PDFs, and EPUBs with paged or vertical scrolling • Use right-to-left manga reading, spreads, zoom, brightness, bookmarks, and precise progress • Download books for offline reading • Continue reading across your devices and keep progress synchronized with your server • Search your library and organize your next read Tsundoku connects directly to the servers you configure. It does not collect analytics, advertising, or tracking data.
Longbox
This app allows you to read your existing comic book files, including CBZ, CBR, and PDF formats, directly on your device. It offers various reading modes, library management, and offline access to your collection. Premium features unlock server connections, cloud browsing, and advanced reading tools.
- Reads CBZ, CBR, and PDF files
- Offline reading support
- Customizable reading modes (fit to width/height, two-page view)
- Right-to-left reading for manga
- Library management with search and favorites
- Optional cloud server integration
- EPUB novel support
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Longbox is a comic reader for people who already have the comics. Point it at your CBZ, CBR and PDF files and it opens them. No account, no upload, no waiting for a library to sync before you can read anything. READING • Fit to width, height or whole page — whichever suits the book • Turn your phone or iPad sideways to read two pages at once, and art drawn across a spread still gets the screen to itself • Pinch to zoom anywhere, double-tap to snap • Right-to-left for manga, set per series and remembered • Night and sepia filters, plus in-app brightness that leaves your system setting alone • Opens on the page you left, every time • Entirely offline — nothing is streamed unless you ask for it YOUR LIBRARY • Import from the Files app — anything on your iPhone or in iCloud Drive • However many comics you own — a hundred or ten thousand, there's no limit • Issues group into series on their own • Search, favourites and reading history • Up to eight libraries, any of them behind a passcode • Reading streaks and a leaderboard, if you want to be on it ALL OF THAT IS FREE The reader is never behind a paywall. Not the filters, not the fit modes, not the reading direction, not reading offline. There's no cap on how many comics you keep, either. If it opens a comic, it costs nothing. LONGBOX PREMIUM • Connect a Komga, Kavita or OPDS server — browse it, read from it, download for offline • Hide comics you'd rather not see, without touching the server • Browse your Dropbox from inside Longbox: a single issue or a whole folder, without leaving the app • Sharpening and upscaling for scans that need it • Beta features first – Panel by panel (alpha) — splash pages and complicated layouts often won't detect • Automatic metadata — publisher, year, creators and characters • EPUB novels — contents, adjustable type, themes and highlighting • Unlimited libraries • Smart Lists that keep themselves current • Your place follows you — across your devices, and in step with your server both ways • Your own picture as the app background • Seven accent colours, each with its own app icon Comics you have already downloaded from a server stay readable forever, even if Premium lapses. Paying us was never what made them yours. PREMIUM PRICING Longbox Premium is available as a one-time purchase, or as a subscription billed monthly or yearly with a 7 day free trial. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless cancelled at least 24 hours before the end of the current period, and can be managed in Settings › Apple Account › Subscriptions. Privacy Policy: https://getlongbox.app/privacy.html Terms of Use: https://getlongbox.app/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: Tsundoku at none against Longbox's 3. Longbox's advantage is iOS requirement (15.5 vs 26.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Longbox sells 3 in-app purchases, starting at $1.99 per month. Tsundoku asks for nothing beyond the download.
| Parameter | Tsundoku | Longbox |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 5 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Kiran Ramjisingh | NOAH REILLEY BEARUP |
In-app purchases
Tsundoku
No in-app purchases
Longbox
- Longbox Premium Monthly$1.991 Month
- Longbox Premium Yearly$14.991 Year
- Longbox Premium Lifetime$24.99








