Athene Reader

Athene Reader

For the books you already own

6 ratings
5 reviews
Free

Details

  • Released
  • Updated
  • September 22, 2026
  • October 3, 2026

Features

Athene Reader screenshot #1 for iPhone
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Athene Reader screenshot #7 for iPhone
Athene Reader screenshot #8 for iPhone
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About

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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What's New in Athene Reader

3.1.0

October 3, 2026

Athene 3.1 brings everything from 3.0 GINGERBREAD, the biggest update yet, and a few improvements of its own. All of it is free. LISTEN Any book, read aloud in a warm, natural voice that runs on your device. Tap the headphones while you read, and it keeps going with the screen locked. The voice is a one-time download of about 242 MB. NOTES YOU CAN DRAW Switch a note from Type to Draw and sketch in the margin, with a tray of pens and inks. Turn on Settings › Reading › More Drawing Tools for a fountain pen, a pencil and a brush. INK ON PDFS Mark up any page of a PDF with Apple Pencil, or with a finger. A DICTIONARY Select a word to see what it means and how to say it. It is built in, and it works offline. ICLOUD SYNC Turn it on in Settings › Sync, and your place, highlights, notes, drawings, collections, papers and reading settings follow you to every device signed in to your iCloud. It's off until you turn it on, and it goes only to your own private iCloud. FONTS AND PAPERS Read in any Google Font: Aa › Add a Font. Paper comes in any colour. MORE WAYS IN Tap + on the Library for free classics from Project Gutenberg, books sent from your computer over Wi‑Fi, a link to a book on the web, or an OPDS catalog. Athene now opens MOBI, AZW3, Word, FB2, TXT and HTML files too, turning them into books as they arrive. SEND TO CALIBRE Your highlights and how far you've read can go back to your calibre library, into columns you choose, and finished books can be marked as read. NEW IN 3.1 CALIBRE, EASIER TO CONNECT Type your computer's address without a port, and Athene finds calibre by itself. When it can't connect, it now says why: calibre isn't running, it's the wrong port, the computer is asleep, or Local Network is switched off. If calibre's Content server is off, "Show me how" walks you through turning it on. COLLECTIONS Add a whole stack of books to a collection at once, and rename or delete a collection by pressing and holding it. A book's menu can take it out of the collection you're in, and switching collections now fades smoothly instead of jumping. TRYING VOICES Each voice plays a different line about Owl when you try it, and a ring around its play button shows the line playing to the end. THE NOTEBOOK The reader's notes panel is now the Notebook, with room for all its filters. Reading is free, as it was.

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User reviews

Fantastic reader which happens to also support Calibre

This is a straight to the point reader with a beautiful UI. This is the first app I’d recommend for an e-reader - and it happens to be ALL FREE!!

My favorite e-reader!

Love the bookshelf concept and its connection to calibre. I finally have all the train operation manual PDF’s from my calibre server right on my phone. Thank you for making this app!!

Simple, Functional, Beautiful, Private

I have caliber-web set up on my Synology NAS and this is now my favorite way of accessing it. The app is incredibly useful. I especially like the way that AI is integrated with privacy in mind. Thank you for making this app. I would pay for it if weren’t free.

Response from developer

Thank you for the kind review! Made my day!

Doesn’t work

I can’t get it to connect to Calibre. I’m doing it correctly. App is the problem.

Response from developer

I’m sorry you are having troubles connecting. Are you starting with http:// ? Please contact athene@theadipost.com and we’ll work together to get it working :)

Great for Calibre users

It was very simple to connect to my existing calibre website. For a long time I used the site as a weblink, this app is so much better!

Response from developer

Thank you, I’m happy you found value in my app. And the app will continue to get even better :)

FAQ

What file formats does Athene Reader support?

Athene Reader supports EPUB and PDF directly. It can also convert MOBI, AZW3, Word, FB2, TXT, and HTML files into readable book formats upon import.

Can I listen to my books with Athene Reader?

Yes, Athene Reader offers a text-to-speech feature that reads any book aloud in a natural voice. This feature runs entirely on your device and continues with the screen locked.

How does the AI assistant in Athene Reader work?

The AI assistant, called the Owl, can answer questions about the content of the page you are reading. It draws information from the current chapter. On devices with Apple Intelligence, it runs on-device. Alternatively, it can connect to your own Ollama server or use keys from Claude, OpenRouter, or OpenAI.

Is Athene Reader available on Android devices?

Athene Reader is currently only available on iOS devices, specifically iPhone and iPad, and requires iOS 26 or later.

Does Athene Reader have ads?

No, Athene Reader is completely free and does not contain advertisements. It also has no in-app purchases or subscriptions.

How often is Athene Reader updated?

The latest version, 3.1.0, was released on October 3, 2026, indicating a recent update. The app was initially released on September 22, 2026.

What are the privacy features of Athene Reader?

Athene Reader is designed with privacy as a core principle. It has no account, no analytics, and no servers of its own. Your books, notes, and questions remain on your device or are sent only to destinations you explicitly choose.

Can I sync my reading progress across devices with Athene Reader?

Yes, you can enable iCloud Sync to synchronize your reading progress, highlights, notes, drawings, collections, and reading settings between your iPhone and iPad. This data is stored privately in your iCloud and encrypted on your device.