Comparison

i2Reader Cloud vs Bookster

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

Head to head
About

i2Reader Cloud

This app offers a comfortable reading experience with cloud synchronization across devices. Enjoy customizable layouts, interactive features like footnotes and dictionaries, and the ability to download books from various cloud services. It supports multiple formats and allows family sharing of libraries.

Highlights
  • iCloud synchronization for library and reading progress
  • Customizable book layout (fonts, colors, spacing)
  • Download books from Dropbox, Google Drive, Yandex Disk
  • Interactive footnotes and dictionary support
  • Family sharing and user reading statistics
  • Supports FB2, EPUB, MOBI, DOC, PDF formats
  • Auto-scrolling and auto-page turning
Features
Read full description

Reading with comfort is a dream of any book lover! It’s more than 10 years already that my i2Reader has been making this dream come true. With each version of the app I add a bunch of new options and always try to keep the pleasure of reading a top priority. When putting books on digital shelves or turning over their 3D pages on any device (Mac, iPhone or iPad), you will always feel “I too Reader”* * - this is not a mistake :) Main features: • iCloud support: your library is synchronized in all your devices. You can start reading a book on iPhone and continue doing it on iPad or Mac! Everything from last the opened page, bookmarksо, highlighters to book metadata, including user's choice of a book cover, titles, genres, keywords, series etc. - is synchronized in each book; • Footnotes are displayed on the bottom of the page – like in real paper books! • Full support of 3D Touch: - in a library: to peek at a book info, press slightly on it; swipe up to bring up a context menu for this book; - when reading, you can assign 3D Touch to one of these options: Wikipedia or dictionaries. Press on a word and the assigned option will run right away, bypassing context menu. • Interactive guide to introduce features of the app; • Support of multitasking Side Over and Split View for iPad Pro, iPad Air or iPad mini; • Support Drag and Drop for iPad under iOS 11; • AutoScrolling – vertical text scrolling with adjustable by horizontal swipe speed; • Auto Turning – automatic page turning according to timer; • download books from Dropbox, Google Drive and Yandex disk as well. Google Drive now supports download of GDOC (Google Docs) files; • User's access: now all members of your family can read the same books not interfering with each other. Besides, the new feature enables you to highlight text fragments and comment on it, thus making up mini-chats in your own mini social/family networks :) • Review of reading statistics for both particular books and individual library users; • adjust brightness of the screen with a two-fingers vertical swipe; • finest configuration of a book layout for the most comfortable reading: everything like fonts, font size, colors, background is adjustable, including paragraph and line spacing; • i2Reader works with FB2 (also fb2.zip or fbz), EPUB (no DRM protection), MOBI, RTF, MS Word DOC/DOCX and PDF book formats; • different ways of page turning (including 3d page turning and vertical scroll); • voice/audio reading with the use of voice synthesizer; • easy selection and sorting of books based on various criteria - you won't get lost in your library and find your book in no time; • you can also create digital shelves which are also synchronized via iCloud; • support of starDict and XDXF dictionaries when reading; • Support of in-built iOS dictionaries; • support of Lingvo dictionaries when reading (if you have installed Lingvo app); • widget for notification center; • you can now share quotes to Facebook, twitter, Evernote or send then via email; • you can also download books from public OPDS libraries. All features in one simple and handy interface - now everything is at your fingertips! You are always welcome to share your opinion and suggestions to support@i2reader.net

About

Bookster

Easily convert FB2 and TXT e-books into the ePub format, compatible with the native iOS Books app. This tool bridges the gap, allowing you to read your favorite books on any iOS device.

Highlights
  • Convert FB2 to ePub
  • Convert TXT to ePub
  • Import books via Files app
  • Import books via iTunes
  • Supports ZIP archives
  • Direct export to iOS Books app
Features
Read full description

Конвертер "Bookster" позволяет загружать электронные книги в формате FB2 и простые текстовые файлы TXT в стандартную читалку iOS "Книги". Поскольку читалка "Книги" не понимает форматы FB2 и TXT, в ней нельзя открывать тексты в этом формате. Но можно поступить по-другому: открыть FB2 книгу или текстовый файл TXT в приложении "Bookster", и уже оттуда загрузить ваш текст в приложение "Книги". При этом приложение "Bookster" само создаст файл в формате ePub, который является родным для приложения "Книги". Интересный факт, но приложение "Книги" не понимает даже самые простые текстовые файлы. Bookster исправляет этот недочет и позволяет загружать также и обычные текстовые файлы с расширением TXT в приложение "Книги". Как пользоваться приложением "Bookster": 1) либо скачиваем FB2 книгу из Интернета, либо отправляем книгу в Bookster из приложения Файлы (или любого другого приложения, в котором она находится), либо копируем ее с помощью iTunes в документы "Bookster"; 2) книга попадает в приложение "Bookster" и появляется у него в списке файлов; 2) в приложении "Bookster" нажимаем на появившийся в списке файл - производится конвертация этого файла из FB2 в ePub; 3) при завершении конвертации у файла появляется меню, в котором выбираем вариант "Скопировать в Книги"; 5) ваша книга открывается в приложении "Книги". "Bookster" также понимает ZIP-архивы, поэтому в него за один раз можно загрузить целую библиотеку. Обзор приложения на сайте ipadstory.ru: http://ipadstory.ru/kak-konvertirovat-fb2-v-epub-dlya-ibooks-pryamo-v-ios.html

Screenshots

i2Reader Cloud4 screens
Bookster1 screens

Verdict

The call

The clearest difference is price: i2Reader Cloud at Free against Bookster's $4.99. i2Reader Cloud also leads on update cadence (every 3 months vs every 7 months). Bookster's advantage is in-app purchases (none vs 5) and iOS requirement (12.0 vs 15.6). On review sentiment, 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

i2Reader Cloud is free to download; Bookster costs $4.99 up front. i2Reader Cloud sells 5 one-off in-app purchases. Bookster asks for nothing beyond the download.

UpkeepUpdate frequency

i2Reader Cloud ships an update every 3 months, Bookster every 7 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

Scorecard5 real differences · 5 level
i2Reader Cloud versus Bookster: the parameters behind the verdict, then further details
Parameteri2Reader CloudBookster
PriceFree — better$4.99
Rating4.1 (74 ratings) — better—
Positive reviews48.4% of reviews — better40.7% of reviews
Number of ratings74 — better—
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size37 MB0 MB
Age rating17+4+
DeveloperYuriy MelyushinNikolay Denislamov

Customer experience

i2Reader Cloud

All ratings74 ratings
Positive78.4%
Neutral4.1%
Negative17.6%
Written reviews64 reviews
Positive48.4%
Neutral7.8%
Negative43.8%

Bookster

Written reviews27 reviews
Positive40.7%
Neutral3.7%
Negative55.6%

Bugs and requests

i2Reader Cloud

Reported bugs

32 issues
  • App freezes during initialization
  • Continuously tries to download from iCloud
  • Crashes after updating to iOS 26
  • App freezes during caching process
  • Crashes and/or hangs on importing themes
Show 27 more
  • Crashes randomly on iOS 17.0.3
  • Page limit makes features worthless
  • App crashes frequently on new iPad M1 chip
  • Bugs and glitches, development seems abandoned
  • App force closes constantly
  • Translator service not working
  • Cannot choose files from local device
  • 3D page turning is broken (page goes off-screen)
  • App freezes and crashes after minimizing
  • Paid version data disappears (books, bookmarks, themes)
  • Settings for reading themes crash the app
  • Progress and some books lost
  • First few pages of EPUBs mangled together
  • App freezes after 2-3 page turns, requires full device reboot
  • Copying text to Notes is slow and causes app to hang/restart
  • App freezes when trying to upload books
  • PDF pages turn back to page 1
  • App doesn't stay on the last page read
  • Syncing with iCloud shows 'book not processed yet'
  • App goes back to the beginning of the book
  • Hyperlinks aren't tapable
  • In-document images not displayed
  • Speech stops reading and requires app restart
  • Loading dictionaries crashes the app
  • Deleted dictionaries reappear after restart
  • Tapping to turn page lags on iPhone 6S
  • Screen dims and becomes unresponsive after a few minutes of reading/translation

Requested features

18 requests
  • Add new chapter functionality
  • Option to move audio reading bar
  • Higher quality text-to-speech with better pronunciation and softer voice
  • Add support for djvu format
  • Improve text-to-speech quality and add more voice engines
Show 13 more
  • Ability to edit annotation of books
  • Combine books of the same author in book list
  • Add OneDrive support
  • Improve PDF handling and page turning
  • Add a manual and links for online dictionaries
  • Improve ePub 3 support
  • Allow font changes
  • Fix issue with PDF progress bar when 'show as is' is off
  • Make hyperlinks tapable
  • Display in-document images
  • Allow deletion of problematic dictionaries
  • Transfer all themes from previous version
  • Adjustable pauses between paragraphs for text-to-speech

Bookster

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

i2Reader Cloud

One-time5
  • Auto-scroll$0.99
  • Seamless textures$0.99
  • Auto turning$0.99
Show 2 more
  • Online translator$1.99
  • Removal of limitations$3.99
None

Bookster

No in-app purchases

Questions

Is i2Reader Cloud free?
i2Reader Cloud is free to download, with in-app purchases available.
Is Bookster free?
Bookster costs $4.99, with no in-app purchases.
Do i2Reader Cloud or Bookster have ads?
Neither i2Reader Cloud nor Bookster shows ads.
Which is updated more often, i2Reader Cloud or Bookster?
i2Reader Cloud ships an update every 3 months, and Bookster every 7 months. Most recently, i2Reader Cloud was updated on October 7, 2026 and Bookster on October 6, 2026.

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