Comparison

BookFusion vs ASA Library

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

Head to head
About

BookFusion

Manage, read, and organize your entire eBook collection across all devices with cloud synchronization. Customize your reading experience with extensive settings, highlights, and annotations. Supports various formats and offers text-to-speech functionality.

Highlights
  • Cross-platform eBook reader
  • Cloud synchronization
  • Organize with virtual bookshelves
  • Highlights and annotations
  • Text-to-Speech (TTS)
  • Send to Kindle
  • Calibre integration
Features
Read full description

Thousands of readers use BookFusion to manage, read and enjoy over 2 million eBooks. BookFusion is the best cross platform eBook reader and manager with cloud sync that allows you to easily read, organize and manage your eBooks across all your devices. ◇ Features ◇ Integrated Reader - Read all your EPUB, PDF, & CBZ/CBR eBooks both online and offline with clean and intuitive interface . Extensive Reader Settings - Customize your reading experience from vertical/horizontal margins, line spacing, fonts, bold/italics, colors and much more. Seamless Syncing - Sync your reading progress, highlights & annotations, eBooks and bookmarks across all devices. Pick up exactly where you left off. Organize & Manage - Easily organize and access all your eBooks seamlessly whether offline or online. Organize your eBooks using virtual bookshelves or place them into Series. Quickly find the eBook you are looking for using the category, tags or author filters. The perfect eBook Organizer & eBook Manager in one. Light & Dark Mode – Dark or Light the preference is yours! Highlights & Annotations - Highlight with your preferred colors and add tags to highlights to keep them organized. Sort your highlights by date or reading progress and easily export them to use in other apps in CSV, Markdown, HTML and PDF formats eBook Cloud - Keep your entire eBook collection at the tips of your fingers by storing them in the cloud and downloading them to read offline only when you need to. Any title just a click away. Text-to-Speech (TTS) - Listen to your favorite eBooks with Apple's native natural-sounding text-to-speech feature. Customize reading speed, voice and accessibility. Ideal for audiobook lovers busy lifestyles and accessible for all readers. Send to Kindle – Organize and quickly send your next read to your Kindle device with one click. Calibre Integration - The perfect Calibre Ally. Sync metadata, custom columns, series, tags and incremental updated PDF & EPUB files to all your devices. Your entire Calibre library on your devices when you need it. Vertical Writing Support - Read Chinese, Vietnamese, Korean, and Japanese eBooks with ease. Image/Area Highlights & Annotations (PDFs) - Easily annotate/highlight images, tables, graphs or even text. Any element at all in your PDF can now be highlighted and annotated. EPUB 3 Support - With support for the full EPUB 3 spec. You can read eBooks with rich interactivity support that includes video, audio, Q&A, games and much more. Widgets – Quickly view and jump back into your last read, currently reading, or highlights right from your home screen with iOS Widgets. Multi-Window Support (iPadOS & macOS) – Open multiple books side by side, drag books into Split View, or read and view highlights simultaneously. Perfect for multitasking, studying, or comparing texts. NOTE: You will need to install the BookFusion Calibre Plugin to sync your eBooks to all your devices. See the tutorial at https://support.bookfusion.com/hc/en-us/articles/360018852052-Installing-Using-the-BookFusion-Plugin-for-Calibre Open With - Don’t like the integrated reader? Use the open with functionality to send and read your eBooks with your preferred app. No lock-in Metadata & Book Details – Know what an eBook is about at a glance or easily edit the cover, description, author tags and other information. Additional Formats Supported via Web - These include: AZW, AZW3, AZW4, CBC, CHM, DJVU, DOCX, FB2, FBZ, HTML, HTMLZ, LIT, LRF, PRC, PDB, PML, RB, RTF, SNB, TCR, TXT, TXTZ in a single app. These must be uploaded via the Web App before using the iOS App Choose from over 70,000 eBooks ◇ Other ◇ Have feedback or just want to chat? We would love to hear from you. Drop us a line at support@bookfusion.com or join us for a chat on Discord at https://www.discord.gg/7v34UYq Terms of Service - https://www.bookfusion.com/terms Privacy Policy - https://www.bookfusion.com/privacy

About

ASA Library

Access and read your purchased eBooks from asa2fly.com on any device. Download titles for offline reading and utilize features like highlighting, bookmarking, and note-taking. An interactive table of contents and easy-to-read rendering enhance the reading experience.

Highlights
  • Offline eBook access
  • Highlighting
  • Bookmarking
  • Note-taking
  • Search functionality
  • Interactive table of contents
Features
Read full description

The ASA Library app allows you to read your ASA eBooks from anywhere. Easily access your eBooks purchased from asa2fly.com and download for offline access. Features include the ability to highlight, bookmark, and take notes, as well as search capability. An interactive table of contents provides a quick jump to specific chapters. Easy-to-read rendering and intuitive UI make reading enjoyable.

Screenshots

BookFusion4 screens
ASA Library4 screens

Verdict

The call

The clearest difference is review sentiment: BookFusion at 77% against ASA Library's 11%. BookFusion also leads on rating (4.7 vs 1.7) and update cadence (every 10 days vs every 12 months). ASA Library's advantage is in-app purchases (none vs 6). On price, ads, device support and iOS requirement 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. BookFusion sells 6 in-app purchases, starting at $1.99 per month. ASA Library asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

BookFusion holds the better App Store score, 4.7 against 1.7. That said, the two scores are not equally well evidenced: BookFusion has 519 ratings behind it against 47, so its average is the more settled of the two. Written reviews point the same way: 77% of BookFusion's written reviews are positive against 11% of ASA Library's.

UpkeepUpdate frequency

BookFusion ships an update every 10 days, ASA Library every 12 months. Both last shipped on October 20, 2026.

Scorecard6 real differences · 4 level
BookFusion versus ASA Library: the parameters behind the verdict, then further details
ParameterBookFusionASA Library
PriceFreeFree
Rating4.7 (519 ratings) — better1.7 (47 ratings)
Positive reviews76.8% of reviews — better10.8% of reviews
Number of ratings519 — better47
Update frequencyEvery 10 days — betterEvery 12 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.114.0 — better
Further details — not scored
Size158 MB74 MB
Age rating12+4+
DeveloperBookFusionASA

Customer experience

BookFusion

All ratings519 ratings
Positive92.7%
Neutral2.5%
Negative4.8%
Written reviews224 reviews
Positive76.8%
Neutral9.4%
Negative13.8%

ASA Library

All ratings45 ratings
Positive13.3%
Neutral2.2%
Negative84.4%
Written reviews37 reviews
Positive10.8%
Neutral2.7%
Negative86.5%

Bugs and requests

BookFusion

Reported bugs

5 issues
  • Highlights and notes not always saving properly
  • Reading position sometimes resets unexpectedly
  • Widget not functioning as expected
  • Occasional crashes and freezes
  • Issues with importing certain ebook formats

Requested features

6 requests
  • Add page numbers instead of just percentages
  • Implement a true dark mode
  • Improve PDF viewing and annotation capabilities
  • Add support for DJVU format
  • Provide an option to purchase a lifetime license
Show 1 more
  • Implement better organization tools like folders/shelves

ASA Library

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

BookFusion

Subscriptions6
  • Casual Monthly$1.991 Month
  • Advanced Monthly$4.991 Month
  • Power Monthly$9.991 Month
Show 3 more
  • Casual Yearly$18.991 Year
  • Advanced Yearly$47.991 Year
  • Power Yearly$95.991 Year
None

ASA Library

No in-app purchases

Questions

Is BookFusion free?
BookFusion is free to download, with in-app purchases available.
Is ASA Library free?
ASA Library is free to download, with no in-app purchases.
Which has better reviews, BookFusion or ASA Library?
BookFusion is rated higher. BookFusion averages 4.7 out of 5 from 519 ratings, while ASA Library averages 1.7 from 47 ratings.
Do BookFusion or ASA Library have ads?
Neither BookFusion nor ASA Library shows ads.
Which is updated more often, BookFusion or ASA Library?
BookFusion ships an update every 10 days, and ASA Library every 12 months. Most recently, BookFusion was updated on October 20, 2026 and ASA Library on October 20, 2026.

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