Comparison

Lios Calibre Viewer vs EPUB Reader

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

Head to head
About

Lios Calibre Viewer

Access and read your entire book collection from your computer on your iPad or iPhone. Organize books by category and download them for offline reading, saving device space. Browse your library quickly with locally stored book names and cover art.

Highlights
  • Stream Calibre library
  • Download books for offline reading
  • Organize books by category
  • Quick library browsing
  • Save device space
Features
Read full description

View your entire calibre library streamed from your host computer to your iPad or iPhone. Download the books to the device and read the books anywhere. Organize your books by category or by the books you choose to download. Your entire library of book names and cover art are stored locally for quick browsing. The books are only downloaded on device when you choose to download them, saving space on your phone or tablet.

About

EPUB Reader

Customize your reading experience with extensive font and layout options. Effortlessly manage your library, track reading habits, and enjoy eye-care features. Sync your books across devices via cloud storage without proprietary lock-in.

Highlights
  • 200+ built-in fonts and custom font import
  • Adjustable text and layout settings
  • Smart dark mode with intelligent image inversion
  • 20-20-20 eye health reminders
  • Library management for 5,000+ books
  • Cloud sync via iCloud, Dropbox, Google Drive, OneDrive
  • Highlighting, notes, and bookmarking
  • Reading progress tracking and goal setting
Features
Read full description

EPUB, PDF, comics, and audiobooks in one native iOS reader. Fast, deeply customizable, and built to disappear so you can simply read. FOUR FORMATS, ONE SHELF Read EPUB 3 and PDF. Read CBZ and CBR comics and manga, with two-page spreads, double-tap zoom, and a reading direction you set per book. Listen to audiobooks with chapters, a sleep timer, Car Mode, and CarPlay. Or follow along with EPUB 3 narration, where the text highlights in time with the voice. READ ALOUD Any book can be read to you, by any Apple voice on your device or by natural neural voices in 31 languages that you download once and then run offline. The sentence highlights as it is spoken and the pages turn on their own, with speed presets, sentence skips, a sleep timer, and Lock Screen controls. Prepare a book in advance and keep listening with the screen off. TYPOGRAPHY YOU CONTROL 200+ fonts, or import your own. Tune size, weight, line and paragraph spacing, alignment, hyphenation, and separate margins for portrait and landscape. Save settings per book so a novel, a textbook, and poetry each look right. Build your own color themes and let them switch at sunset. Choose which buttons the reader toolbar shows and where a tap opens it, and give links their own color and style. Smart dark mode keeps images natural, and in-reader brightness, Line Focus, and eye-care break reminders protect your eyes. NO LOCK-IN, EVER Your books stay ordinary files in an ordinary folder, never a proprietary database. Point JustRead at any folder: on device, iCloud Drive, or one your cloud app syncs through Files. Import from a Calibre server or any OPDS catalog. Email a book to your Kindle or PocketBook. IN SYNC WITH YOUR E-READER Your reading position follows you to any e-reader running KOReader, a Kobo included, in both directions. Connect a self-hosted Grimmory server to browse and download its books, send books to it, and keep status, ratings, highlights, notes, and bookmarks in step both ways. A LIBRARY THAT SCALES Thousands of books with no lag, and a book opens in about a second. Instant search by title, author, or series. Automatic metadata and series detection, 11 sort modes, saved filters, collections, and tags. Edit any book's details by hand, description included. Spotlight opens any book from your home screen. HIGHLIGHTS, NOTES, BOOKMARKS Highlight, underline, and attach a note. Browse every highlight across your whole library in one place, share a quote as a card, or export to Markdown, PDF, or Readwise. YOUR READING, IN NUMBERS Daily goals, a yearly books goal, streaks, and milestone badges. An hourly heatmap shows when you read best. Monthly and yearly recaps, plus a story-style Reading Wrap that turns your year into cards worth sharing. AND THE REST Home screen and lock screen widgets. Dictionary and translation. Full-text search and a nested table of contents. iCloud sync, so you resume on the exact line on any device. Right-to-left and Japanese vertical text. A page curl, if you want one. Free for 14 days, then a subscription or a lifetime purchase, both with Family Sharing. Available in 21 languages. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://justread.app/en/privacy_policy

Screenshots

Lios Calibre Viewer4 screens
EPUB Reader4 screens

Verdict

The call

The clearest difference is price: EPUB Reader at Free against Lios Calibre Viewer's $2.99. EPUB Reader also leads on rating (4.6 vs 4.3) and ratings volume (54 vs 3). Lios Calibre Viewer's advantage is in-app purchases (none vs 7) and review sentiment (100% vs 82%). On 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

EPUB Reader is free to download; Lios Calibre Viewer costs $2.99 up front. EPUB Reader sells 7 in-app purchases, starting at $2.99 per month. Lios Calibre Viewer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EPUB Reader holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: EPUB Reader has 54 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of Lios Calibre Viewer's written reviews are positive against 82% of EPUB Reader's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard7 real differences · 3 level
Lios Calibre Viewer versus EPUB Reader: the parameters behind the verdict, then further details
ParameterLios Calibre ViewerEPUB Reader
Price$2.99Free — better
Rating4.3 (3 ratings)4.6 (54 ratings) — better
Positive reviews100.0% of reviews — better81.8% of reviews
Number of ratings354 — better
Update frequencyEvery 5 daysEvery 5 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.1
Further details — not scored
Size11 MB210 MB
Age rating4+4+
DeveloperAntonio TorresPETR JAHODA

Customer experience

Lios Calibre Viewer

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

EPUB Reader

All ratings54 ratings
Positive88.9%
Neutral5.6%
Negative5.6%
Written reviews44 reviews
Positive81.8%
Neutral9.1%
Negative9.1%

In-app purchases

None

Lios Calibre Viewer

No in-app purchases

7 purchases

EPUB Reader

Subscriptions5
  • Monthly Premium14 Days trial$2.991 Month
  • Monthly Premium$4.991 Month
  • Yearly – Launch Price7 Days trial$12.491 Year
Show 2 more
  • Yearly Premium14 Days trial$24.991 Year
  • Yearly Premium$29.991 Year
One-time2
  • Lifetime – Launch Price$29.99
  • Lifetime Premium$79.99

Questions

Is Lios Calibre Viewer free?
Lios Calibre Viewer costs $2.99, with no in-app purchases.
Is EPUB Reader free?
EPUB Reader is free to download, with in-app purchases available.
Which has better reviews, Lios Calibre Viewer or EPUB Reader?
EPUB Reader is rated higher. Lios Calibre Viewer averages 4.3 out of 5 from 3 ratings, while EPUB Reader averages 4.6 from 54 ratings.
Do Lios Calibre Viewer or EPUB Reader have ads?
Neither Lios Calibre Viewer nor EPUB Reader shows ads.
Which is updated more often, Lios Calibre Viewer or EPUB Reader?
Lios Calibre Viewer ships an update every 5 days, and EPUB Reader every 5 days. Most recently, Lios Calibre Viewer was updated on October 24, 2026 and EPUB Reader on October 27, 2026.

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