Comparison

BookFusion vs BioDoc

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 eBooks across all devices with seamless cloud synchronization. Customize your reading experience with extensive settings, highlight notes, and text-to-speech functionality. Integrates with Calibre and supports various file formats.

Highlights
  • Cross-platform eBook reader and manager
  • Cloud sync for reading progress and eBooks
  • Customizable reading experience
  • Highlighting and annotation tools
  • Text-to-Speech (TTS) functionality
  • Calibre integration
  • Support for EPUB, PDF, CBZ/CBR
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

BioDoc

Enhance your reading speed and comprehension with a bionic reading method. This app guides your eyes through text, helping you absorb information faster and retain more. It's ideal for students, individuals with ADHD, or anyone seeking efficient reading.

Highlights
  • Bionic reading technology
  • Bold reading method
  • Copy and paste text input
  • Send text to Kindle
  • User-friendly interface
  • Subscription options
Features
Read full description

Do you struggle with long reading assignments or wish to read faster and retain more information? Look no further than Fast Read – the innovative new app that will change how you read. Using bionic reading technology, Fast Read helps guide your eyes and brain through text, allowing you to read faster and more efficiently. Copy and paste any text into the app and let Fast Read do the rest. With our bold reading method, you'll be able to absorb readers quickly and retain more of what you read. Fast Read isn't just about speed – it's also about improving your comprehension. By focusing on the most critical parts of words, our app helps you understand the context of texts more efficiently. With a user-friendly interface and a range of subscription options, you can choose the best plan for you. Plus, with the ability to send text directly to Kindle, you can easily access your reading materials on any device. Whether you're a student tackling a tough assignment, someone with ADHD looking to improve your focus, or simply looking for a quick and efficient way to read; Fast Read has got you covered. So why wait? Download Fast Read now and start boosting your reading skills today! Subscription Options: - 1 month ($0.99) - 12 months ($9.99) Note: Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. After purchase, you can manage your subscription and turn off auto-renewal by visiting your iTunes Account Settings. Privacy Policy: https://tolunaykan.github.io/biodoc-privacy-policy.html Terms of Use: https://tolunaykan.github.io/biodoc-terms-of-use.html Need help or have a question? Contact us at tolunaykandirmaz@gmail.com

Screenshots

BookFusion4 screens
BioDoc4 screens

Verdict

The call

The clearest difference is ads: BookFusion at none against BioDoc's shown. BookFusion also leads on ratings volume (525 vs 1). BioDoc's advantage is rating (5.0 vs 4.7) and review sentiment (100% vs 76%). On price, update cadence, in-app purchases and monetization model 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 and BioDoc sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BioDoc holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: BookFusion has 525 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of BookFusion's written reviews are positive against 100% of BioDoc's.

UpkeepUpdate frequency

BookFusion ships an update every 10 days, BioDoc fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
BookFusion versus BioDoc: the parameters behind the verdict, then further details
ParameterBookFusionBioDoc
PriceFreeFree
Rating4.7 (525 ratings)5.0 (1 ratings) — better
Positive reviews76.4% of reviews100.0% of reviews — better
Number of ratings525 — better1
Update frequencyEvery 10 days — betterFortnightly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.112.4 — better
Further details — not scored
Size158 MB48 MB
Age rating12+4+
DeveloperBookFusionTolunay Kandirmaz

Customer experience

BookFusion

All ratings523 ratings
Positive92.7%
Neutral2.5%
Negative4.8%
Written reviews225 reviews
Positive76.4%
Neutral9.3%
Negative14.2%

BioDoc

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

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

BioDoc

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
2 purchases

BioDoc

Subscriptions2
  • Premium Features$2.991 Month
  • Premium Features$9.991 Year

Questions

Is BookFusion free?
BookFusion is free to download, with in-app purchases available.
Is BioDoc free?
BioDoc is free to download, with in-app purchases available.
Which has better reviews, BookFusion or BioDoc?
BioDoc is rated higher. BookFusion averages 4.7 out of 5 from 525 ratings, while BioDoc averages 5.0 from 1 ratings.
Do BookFusion or BioDoc have ads?
BioDoc shows ads; BookFusion does not.
Which is updated more often, BookFusion or BioDoc?
BookFusion ships an update every 10 days, and BioDoc fortnightly. Most recently, BookFusion was updated on November 6, 2026 and BioDoc on November 3, 2026.

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