BookFusion vs Athene Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Cross-platform eBook reader
- Cloud synchronization
- Organize with virtual bookshelves
- Highlights and annotations
- Text-to-Speech (TTS)
- Send to Kindle
- Calibre integration
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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
Athene Reader
Organize and read your digital books from various sources. Customize your reading experience with adjustable fonts, colors, and layouts. Listen to your books, take notes, and even ask questions about the content with an AI assistant.
- Import books from various sources
- Customizable reading interface
- Text-to-speech functionality
- Note-taking and highlighting
- AI-powered content questions
- Offline dictionary
- iCloud Sync
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Athene is a reader for the books you already own. Bring your books from Files, from Mail, from your computer over Wi‑Fi, from a link, or from anywhere that can share a file, and they go on a shelf that looks like one. EPUB and PDF open as they are; MOBI, AZW3, Word, FB2, TXT and HTML files become books as they arrive. Free classics from Project Gutenberg are a tap away. If you keep your library on a calibre server, Athene browses that shelf too — on your home network, or from anywhere through your own VPN such as Tailscale. THE PAGE Open a book and the app steps back. Just the page, on white, sepia or night paper, or paper in any colour you like, in the typeface and size you read best, including any Google Font. Highlight a passage, add a note, drop a bookmark, and find them all again under Marks. The shelf itself follows the time of day — Morning, Sunset, Night — or stays on the one you pick. NOTES YOU CAN DRAW Type a note in the margin, or sketch in it. On a PDF, mark up the page itself with Apple Pencil. LISTEN Any book, read aloud in a warm, natural voice that runs entirely on your device, and keeps reading with the screen locked. The voice is a one-time download of about 242 MB. A DICTIONARY Select a word to see what it means and how to say it. It is built in, and it works offline. ASK THE PAGE Tap the owl while you read and ask about what is in front of you. Who is she again? What did that word mean? What just happened? The Owl answers from the pages around where you are — this chapter at most, never the whole book, never your other books — and if the pages do not say, it tells you that instead of guessing. YOUR MODEL, YOUR CHOICE On a device with Apple Intelligence, the Owl thinks on the device and nothing you ask is sent anywhere. Or point it at your own Ollama server on your own network. Or bring a key from Claude, OpenRouter or OpenAI. Athene asks before the first question leaves the device, names the address it would send to, and remembers your answer. ON EVERY DEVICE Turn on iCloud Sync and your place, highlights, notes, drawings, collections and reading settings follow you between your iPhone and iPad. It goes only to your own private iCloud, and what you wrote is encrypted on your device first. With a calibre server, your highlights and how far you've read can go back to your calibre library too. PRIVATE BY CONSTRUCTION Athene has no account, no analytics and no servers of its own. Your books, your notes and your questions stay on your device or go only where you have pointed them. The privacy policy says the same, in plain words. FREE Reading is free. No account, no subscription, no limit: the shelf, the reader, Listen, the dictionary, the Owl, iCloud Sync, your calibre server, your highlights and notes. Nothing in Athene is for sale. Athene requires iOS 26. The on-device Owl requires Apple Intelligence (iPhone 15 Pro and later, M-series iPad, iPad mini A17 Pro); on other devices the Owl works with your own Ollama server or an API key.
Screenshots
Verdict
The clearest difference is in-app purchases: Athene Reader at none against BookFusion's 6. Athene Reader also leads on update cadence (every 2 days vs every 10 days). BookFusion's advantage is rating (4.7 vs 4.3) and ratings volume (519 vs 6). On price, 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
Both are free to download. BookFusion sells 6 in-app purchases, starting at $1.99 per month. Athene Reader asks for nothing beyond the download.
BookFusion holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: BookFusion has 519 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 77% of BookFusion's written reviews are positive against 80% of Athene Reader's, so the app with the better star average is not the one people write more warmly about.
BookFusion ships an update every 10 days, Athene Reader every 2 days. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.
| Parameter | BookFusion | Athene Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (519 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | 76.7% of reviews | 80.0% of reviews — better |
| Number of ratings | 519 — better | 6 |
| Update frequency | Every 10 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 158 MB | 36 MB |
| Age rating | 12+ | 4+ |
| Developer | BookFusion | Aditya Sreedhar |
Customer experience
BookFusion
Athene Reader
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
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- Implement better organization tools like folders/shelves
Athene Reader
Not enough reviews yet to summarise bugs or requests.
In-app purchases
BookFusion
- Casual Monthly$1.991 Month
- Advanced Monthly$4.991 Month
- Power Monthly$9.991 Month
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- Casual Yearly$18.991 Year
- Advanced Yearly$47.991 Year
- Power Yearly$95.991 Year
Athene Reader
No in-app purchases
Questions
Is BookFusion free?
Is Athene Reader free?
Which has better reviews, BookFusion or Athene Reader?
Do BookFusion or Athene Reader have ads?
Which is updated more often, BookFusion or Athene Reader?
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