CalibReader vs ComfyReader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
ComfyReader
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ComfyReader is a quiet place to read and listen. Pick a classic, settle into a scene of rain on the window or a crackling fire, and read, or let the book be read to you. A LIBRARY OF CLASSICS Browse 1,530 public-domain books from Standard Ebooks, carefully produced editions of novels, stories, poetry and nonfiction, from A to Z. Search by title or author, download in a tap and read offline. Every catalog book is free. YOUR OWN BOOKS Import your own DRM-free EPUB files and text PDFs from Files, the Share Sheet, or by drag and drop on iPad. PDF reading is in Beta: a Reader view reflows a text PDF for comfortable reading. LISTEN 25 catalog books come with a free audiobook, narrated by Storyteller, our own voice. Words light up as they're read and pages turn on their own. Any book can also be read aloud for free with Apple's voices, right on your device. NARRATE THIS BOOK Want Storyteller to read a book that has no audio yet, even one you imported? Narrate This Book turns any English book into Premium Audio with a single purchase priced by the book's length, shown before you buy. The chapter you're on is narrated first, usually ready in minutes, and the app shows when the rest of the book will be ready. Your audiobook downloads to your device, and Restore Purchases brings it back on your other devices. READER SCENES Eight scenes set the mood with a soft looping video and matched sound: Lodge Fireplace, Café, Rain on Window, Rain on Tent, Thunderstorm, Ocean Waves, Mountain Snowfall and Starship Bridge. Every scene's sound is free, and Lodge Fireplace and Café are free in full. SPOTLIGHT READING Follow an audiobook one sentence at a time: only the sentence being read, large and centered, with the rest of the page out of sight. MADE FOR EVERY SCREEN Designed for iPhone, iPad and iPhone Duo. Your library, reading positions, bookmarks and settings sync through your own private iCloud. PRIVATE BY DESIGN No account and no sign-up. No ads, no third-party analytics and no tracking. EXTRA COMFY Reading, the catalog, imports, Read Aloud and the free audiobooks are free. The Extra Comfy subscription adds, on every book: • The video and visuals of every reader scene • Words highlighted as they're read, with pages that turn on their own • Spotlight Reading On the 25 books with a free audiobook, all of this is free for everyone. Extra Comfy is $5.99 a month or $49.99 a year in the US (prices vary by country), and starts with a 7-day free trial. It can be shared with your family through Family Sharing. Premium Audio for a book is a separate one-time purchase and doesn't need the subscription. Payment is charged to your Apple Account when you confirm the purchase. The subscription renews automatically unless you turn off auto-renew at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You can manage or cancel it in your Apple Account settings after purchase. Any unused part of a free trial ends when you buy a subscription. Terms of Use: https://comfyreader.com/terms Privacy Policy: https://comfyreader.com/privacy
Screenshots
Verdict
The clearest difference is chart position: CalibReader at #124 against ComfyReader's unranked. On price, ads, in-app purchases 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. CalibReader sells 1 one-off in-app purchase and ComfyReader sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | CalibReader | ComfyReader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 3 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #124 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.2 | 26.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 23 MB |
| Age rating | 4+ | 12+ |
| Developer | Gram 1 | Lane Fries |
In-app purchases
CalibReader
- Unlock All Books Forever$9.99
ComfyReader
- Narrate This Book$10.99
- Narrate This Book$11.99
- Narrate This Book$13.99
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- Narrate This Book$16.99
- Narrate This Book$18.99
- Narrate This Book$23.99
- Narrate This Book$29.99
- Narrate This Book$34.99
- Narrate This Book$46.99
- Narrate This Book$59.99









