Athene Reader vs Open Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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, from + in your Library — 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. Select a passage in another language to translate it. 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. THE NOTEBOOK Every highlight, note and drawing from every book you read, in one place, with filters and search. Write what stayed with you after a chapter, a reading session or a whole book, typed or drawn; your reflections stay even if the book leaves your shelf. LISTEN Any book, read aloud in a warm, natural voice that runs entirely on your device, and keeps reading with the screen locked. PDFs too: Listen skips the running heads, page numbers and footnotes, reads scanned pages, and describes the pictures and tables as it reaches them. 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, highlights go both ways: yours to your calibre library, and the ones you make in calibre's own reader to Athene. With KOReader on an e-reader, your books, your place, and your highlights, notes and bookmarks stay in step through a sync server of your own. 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, the Notebook, iCloud Sync, calibre and KOReader, your highlights and notes. Nothing is locked. WHAT READERS SAY “The app works perfectly with my Calibre library.” (ZenoNow) “It was very simple to connect to my existing calibre website.” (linux0117) “I’d happily pay for Athene if it weren’t free.” (Momji_iphone) 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. Pictures in PDFs are described on iOS 27 with Apple Intelligence.
Open Reader
This app allows you to read your own EPUB, PDF, and CBZ files without converting them. It saves your progress automatically and offers extensive customization for text and background settings. Access your books directly from the Files app and enjoy offline reading.
- Read EPUB, PDF, and CBZ files
- Automatic page saving
- Customizable text and backgrounds
- Offline reading support
- Direct file access via Files app
- No ads or in-app purchases
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Read your own EPUB, PDF and CBZ comic files, and pick up exactly where you stopped. Open Reader keeps your books as ordinary files in Files > On My iPhone > Open Reader. Nothing is converted, hidden in a private library or offloaded to the cloud, so you can see, move and back up your books like any other file. • Your page is saved on every page turn, and survives closing the app, text size changes and relaunching. • EPUB, PDF and CBZ comics all open in this version, with no format locked behind a purchase. • 14 text sizes, plus line spacing, paragraph spacing, margins, justification and font. • Paper, Sepia, Night or Auto backgrounds. • Tap the edge of the page to turn it; the table of contents is one tap away. • Add many books at once, or a whole folder, from the Files app. Open in Open Reader from other apps. • Works offline. Remote images and scripts inside books are blocked. This version is free, with no account, ads, analytics or in-app purchases. Open Reader doesn't sell books and doesn't remove DRM; it opens DRM-free files you already have.
Screenshots
Verdict
The clearest difference is update cadence: Athene Reader at every 2 days against Open Reader's every 2 weeks. Athene Reader also leads on ratings volume (11 vs 1). Open Reader's advantage is rating (5.0 vs 4.6) and iOS requirement (17.0 vs 26.0). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Open Reader holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Athene Reader has 11 ratings behind it against 1, so its average is the more settled of the two.
Athene Reader ships an update every 2 days, Open Reader every 2 weeks. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.
| Parameter | Athene Reader | Open Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (11 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 87.5% of reviews | — |
| Number of ratings | 11 — better | 1 |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Aditya Sreedhar | Paul Jump |
Customer experience
Athene Reader
Open Reader
In-app purchases
Athene Reader
No in-app purchases
Open Reader
No in-app purchases









