Comparison

Calibro Reader 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

Calibro Reader

Access your entire e-book library across all your mobile devices with this comprehensive reading platform. Enjoy a new reading style, share favorite quotes on social media, and keep your library with you anywhere.

Highlights
  • Cross-device e-book access
  • Unified reading platform
  • Social media quote sharing
  • Access purchased e-books
  • Library management
Features
Read full description

Calibro: Keyifli, pratik, yeni bir okuma tarzı Calibro sadece bir cihaz değil, kitapseverlerin her zaman, her yerde ve her türlü cihazıyla e-kitaplarına ulaşmasını amaçlayan bir kitap ekosistemi. Bunun için bütün mobil cihazları sisteme dahil edip bir okuma platformu olarak görüyoruz. Bunun için tüm sistemlerde çalışan farklı uygulamalar hazırladık. iOS tabanlı tüm cihazlara uygun Calibro uygulaması ile e-kitaplarınızı tüm iPhone ve iPad cihazlarında rahatlıkla okuyabilirsiniz. Calibro iOS ile kütüphaneniz yanınızda. Calibro iOS ile bilgisayarınıza veya Calibro’nuza satın alarak indirdiğiniz e-kitabınızı tablet veya telefonunuzdan da okuyabilirsiniz. Okuduğunuz kitabın sevdiğiniz cümlelerini sosyal medyada paylaşabilirsiniz. Calibro iOS ile satın alma işlemi yapılamamaktadır ancak diğer platformlarda satın aldığınız e-kitaplarınızı okuyabilirsiniz.

About

EPUB Reader

This app allows you to import and read your DRM-free ebook files locally. It supports various formats and offers customizable reading settings for a personalized offline experience. You can also search, highlight, and annotate your books.

Highlights
  • Import DRM-free EPUB, MOBI, AZW3, FB2, TXT
  • Offline reading with no account
  • Customizable text and themes
  • Full-book search and highlighting
  • Chapter navigation and progress tracking
  • Export notes and highlights
Features
Read full description

EPUB Reader is an epub reader for the books you already own. Import your DRM-free EPUB, MOBI, AZW3, FB2 and TXT files into one local ebook library and read them offline, with no account and nothing uploaded. An ebook reader that takes the file as it is. EPUB reflows to your settings. DRM-free MOBI, AZW, AZW3 and PRC open directly, with AZW3 read from its KF8 layer for better typography. FB2 arrives as .fb2, .fb2.zip or .fbz, and TXT is decoded as UTF-8 or GBK, with a long chapterless file split into chapters you can navigate. The format is read from the contents of the file, so a book that lost its extension in mail still opens; what will not open is reported as unsupported or damaged. Reading is paginated, not an endless scroll: tap a side of the page or swipe. The contents list opens on the chapter you are in, the bottom bar carries the chapter name, page X of Y and your percentage through the book, and the progress bar jumps only when you let go. A reopened book starts on the page you left. Search the whole book from two characters up. Every hit arrives with its chapter name and the words around it; tap one and the reader lands there with the match highlighted. Highlight any passage in one of four colors, attach a note or copy it. Bookmarks, highlights and notes share one panel and export as plain text. Type size, page brightness, justified or left-aligned text and the light, sepia and dark paper themes are all free, night reading included. Every pixel of the reader follows the paper theme, and a book's own CSS cannot turn sepia or dark into dark text on a dark page. Offline books are the normal case here, not a mode you switch on: on a plane, in the subway, in a dead zone on the highway, the library and the book behave the same. At night the dark paper theme and the brightness slider let you read beside someone who is asleep. Studying, you highlight what matters, write your thought next to it, then export chapter, progress, passage and note into your notes app. Most of what sits beside this app in search is a different product. Content platforms hand you a catalog and want you signed in. Converters turn one format into another. Borrowing apps need a library card. Read-aloud apps are built around a voice. This one opens the files that are already yours and stays out of the way. • Open DRM-free EPUB, MOBI, AZW, AZW3, PRC, FB2 and TXT files • Format read from file contents, even with a wrong extension • TXT in UTF-8 or GBK, long files split into navigable chapters • Import several files in one go and get a single summary • Ebook library as a cover grid, three to six columns • Search by title or author, filter by reading, not started or finished • Sort by recently read, recently added, title or author to organize the shelf • Continue Reading card for the book you had open last • Page turns by tap or swipe, with a draggable progress bar • Contents list, chapter name, page X of Y and whole-book percentage • Full-book search with chapter name and context per hit • Four highlight colors, notes and copy from the selection bar • Bookmarks, highlights and notes in one panel, exportable as text • Line spacing, page margins and font family (Pro) Your books and your reading position stay in this app's storage on the device: no account, no sync, no record of what you read. To be clear about the edges: no PDF, no comic archives, no DOC or CHM, no conversion between formats, no way into books locked by another store's DRM, no text-to-speech, no audiobooks, no translation, no dictionary. The free library holds three books; EPUB Reader Pro lifts that limit and unlocks line spacing, page margins and font family. Bring your own files, drop them in and start reading. Terms of Use: https://zeroplay.io/docs/legal/terms-of-service Privacy Policy: https://zeroplay.io/docs/legal/privacy-policy

Screenshots

Calibro Reader4 screens
EPUB Reader4 screens

Verdict

The call

The clearest difference is review sentiment: Calibro Reader at 41% against EPUB Reader's 0%. Calibro Reader also leads on in-app purchases (none vs 2) and ads (none vs shown). EPUB Reader's advantage is rating (5.0 vs 4.5) and update cadence (every 2 months vs every 4 months). On price 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. EPUB Reader sells 2 in-app purchases, starting at $5.99 per 7 days. Calibro Reader asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EPUB Reader holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews complicate that: 41% of Calibro Reader's written reviews are positive against 0% of EPUB Reader's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Calibro Reader ships an update every 4 months, EPUB Reader every 2 months. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard8 real differences · 2 level
Calibro Reader versus EPUB Reader: the parameters behind the verdict, then further details
ParameterCalibro ReaderEPUB Reader
PriceFreeFree
Rating4.5 (4 ratings)5.0 (1 ratings) — better
Positive reviews40.5% of reviews — better0.0% of reviews
Number of ratings4 — better1
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.1
Further details — not scored
Size52 MB104 MB
Age rating4+4+
DeveloperLIBRONET BILGI HIZMETLERI VE YAZILIM SANAYI TICARET LTD STIZeroPlay Ltd.

Customer experience

Calibro Reader

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews37 reviews
Positive40.5%
Neutral10.8%
Negative48.6%

EPUB Reader

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Calibro Reader

No in-app purchases

2 purchases

EPUB Reader

Subscriptions2
  • Weekly3 Days trial$5.997 Days
  • Monthly3 Days trial$14.991 Month

Questions

Is Calibro Reader free?
Calibro Reader is free to download, with no in-app purchases.
Is EPUB Reader free?
EPUB Reader is free to download, with in-app purchases available.
Which has better reviews, Calibro Reader or EPUB Reader?
EPUB Reader is rated higher. Calibro Reader averages 4.5 out of 5 from 4 ratings, while EPUB Reader averages 5.0 from 1 ratings.
Do Calibro Reader or EPUB Reader have ads?
EPUB Reader shows ads; Calibro Reader does not.
Which is updated more often, Calibro Reader or EPUB Reader?
Calibro Reader ships an update every 4 months, and EPUB Reader every 2 months. Most recently, Calibro Reader was updated on October 15, 2026 and EPUB Reader on October 16, 2026.

Other comparisons