Comparison

CalibReader vs Calimob

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CalibReader

This app offers a reading experience for EPUB and PDF files, featuring dual-page spreads and realistic page curls. It integrates with your existing calibre library and supports various cloud storage options. Enjoy a customizable reading environment and seamless syncing across devices.

Highlights
  • Dual-page spread and page curl effect
  • Calibre library integration
  • Cloud storage support (iCloud, Dropbox, OneDrive)
  • Cross-device reading position sync
  • Customizable themes and fonts
  • Built-in dictionary
  • PDF reader with two-page spreads
Features
Currently charting
Read full description

Read your EPUBs like a real book: two pages side by side on iPad and iPhone Duo, with real page curls. PDFs open as two-page spreads too. Open your ebook files straight from Files, Safari, Mail or AirDrop, or bring your whole calibre library: CalibReader shelves them with covers and series, and keeps your place on every device. BUILT FOR IPHONE DUO Open iPhone Duo and your book becomes a two-page spread, with real page curls. Close it and the book closes: the cover screen shows its cover, leather-bound with the title in gold or the original art. Tap to keep reading, one page at a time. Your place holds through every fold, and turning the open phone to portrait gives you a single page. YOUR EPUB AND PDF FILES Any folder of EPUB or PDF files becomes a library with covers, sorting and search. WORKS WITH YOUR CALIBRE LIBRARY Point CalibReader at your calibre library folder and every book, cover, series, tag and synopsis appears as you organised it. Nothing to convert, no lock-in. YOUR STORAGE, YOUR CHOICE • A folder on your device or in iCloud Drive • Dropbox and OneDrive • Your own server or NAS over SMB • Other apps that share a folder in Files A READER BUILT FOR LONG SESSIONS • Two-page spread, single page or continuous scroll, with page curl or flip • Opens on a title page that turns over like a real one • Parchment, sepia, black and navy themes, or your own colour • Font, size, spacing, margins and justification, applied live • Table of contents, chapter navigation, clock and progress footer • Built-in dictionary • A PDF reader with two-page spreads on iPad and iPhone Duo that remembers your page PICK UP WHERE YOU LEFT OFF Reading positions and read status sync across your devices through a tiny file in your library folder. Put down the iPad, pick up the iPhone. A free calibre plugin writes read status, % read and last-read date back to your desktop library. A LIBRARY THAT LOOKS LIKE A LIBRARY Home with continue reading and recently added; grid, list and series views; filters and search; cover art found automatically when a book has none, and Choose Cover to swap in another edition's cover or bind any book in leather. 3 BOOKS FREE, THEN ONE PURCHASE Read any 3 books free, and bring in, sync and browse as many as you like. Then unlock your whole library with one purchase. No subscription, no account, no ads, no tracking, and no data collected. Formats: EPUB and PDF in the built-in reader; other formats open in the app of your choice. Note: CalibReader opens EPUB and PDF files without copy protection (DRM). Books bought in other apps' stores stay in those apps. CalibReader is an independent app, not affiliated with or endorsed by the calibre project. calibre is a trademark of Kovid Goyal. Support: hello@calibreader.com · https://calibreader.com

About

Calimob

Features
Read full description

Your entire Calibre library, in your pocket. CaliMob syncs your Calibre ebook library to your phone or tablet — with full support for EPUB, PDF, CBR/CBZ/CB7, MOBI, AZW3 and audiobooks. Read, annotate, and pick up exactly where you left off. FORMATS & READERS • EPUB reader with custom fonts, themes, margins and text-to-speech (TTS) • Comic and manga reader with full-screen mode (CBR, CBZ, CB7) • PDF viewer with reflow support • MOBI and AZW3 reader — no conversion needed • Audiobook player (MP3, M4B, AAC, OGG, FLAC) SYNC YOUR LIBRARY • Connect to Calibre's own Content Server over Wi-Fi • Google Drive, Dropbox, OneDrive — use your existing cloud storage • WebDAV, FTP and SFTP for self-hosted setups • OPDS catalog browsing (Calibre-Web, Kavita, Komga and more) FIND ANY BOOK INSTANTLY • Filter by author, series, tag, publisher or format • AI-powered semantic search across your entire collection • Multiple libraries with independent settings DESIGNED FOR READING • Dark mode with true black OLED theme • Reading progress tracking with statistics • Highlights, bookmarks and notes • Offline reading — download books for reading anywhere • Customizable reading experience (fonts, spacing, colors) • Import books from any app via share intent PRIVATE & SECURE • Your books stay on your device and your cloud — no third-party servers • No ads, no tracking CaliMob is built for Calibre users who want their library everywhere. Whether you read novels, comics, manga, technical PDFs or listen to audiobooks — CaliMob handles it all. Questions or feedback? Visit caliwebapp.com/help

Screenshots

CalibReader4 screens
Calimob4 screens

Verdict

The call

The clearest difference is in-app purchases: Calimob at none against CalibReader's 1. Calimob also leads on iOS requirement (15.6 vs 26.2). CalibReader's advantage is chart position (#140 vs unranked). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CalibReader sells 1 one-off in-app purchase. Calimob asks for nothing beyond the download.

UpkeepUpdate frequency

CalibReader ships an update every 3 days, Calimob every 4 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 8 level
CalibReader versus Calimob: the parameters behind the verdict, then further details
ParameterCalibReaderCalimob
PriceFreeFree
Rating4.3 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 days — betterEvery 4 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#140 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.215.6 — better
Further details — not scored
Size49 MB113 MB
Age rating4+4+
DeveloperGram 1Frada SRL

In-app purchases

1 purchases

CalibReader

One-time1
  • Unlock All Books Forever$9.99
None

Calimob

No in-app purchases

Questions

Is CalibReader free?
CalibReader is free to download, with in-app purchases available.
Is Calimob free?
Calimob is free to download, with no in-app purchases.
Do CalibReader or Calimob have ads?
Neither CalibReader nor Calimob shows ads.
Which is updated more often, CalibReader or Calimob?
CalibReader ships an update every 3 days, and Calimob every 4 days. Most recently, CalibReader was updated on November 8, 2026 and Calimob on October 31, 2026.

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