Comparison

Athene Reader vs purrpage. Double

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

Head to head
About

Athene Reader

Organize and read your digital books in various formats. Customize your reading experience with adjustable fonts, colors, and note-taking features. Listen to your books with a natural-sounding voice and translate text.

Highlights
  • Import books from various sources
  • Organize books on a virtual shelf
  • Customizable reading interface
  • Highlighting and note-taking
  • Text-to-speech functionality
  • Built-in offline dictionary
  • AI-powered page analysis
Features
Read full description

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. The Athene Bookstore has free classics from Project Gutenberg and Standard Ebooks and, in the US, DRM-free books to buy. 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 and no analytics, and nothing about you goes to the developer. 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) “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.

About

purrpage. Double

This app offers a serene reading experience for books, PDFs, and articles. It features customizable typography, a distraction-free interface, and a smart reading companion for explanations and summaries. Listen to your content with natural voices and follow along as sentences are highlighted.

Highlights
  • Customizable typography
  • Distraction-free reading
  • Organized library for books, PDFs, articles
  • AI reading companion for explanations and summaries
  • Text-to-speech with highlighting
  • Note-taking and highlighting
  • Two-page spread on compatible devices
Features
Read full description

Duo Reader is a quiet place to read. Your books, PDFs and articles live in one calm library, set in beautiful type, with a reading companion for when a page needs a second look. READ IN COMFORT - Typography first: choose your typeface, size, spacing and margins, and every line reflows instantly - Clean, distraction-free pages that let the words lead - Pick up exactly where you left off, every time YOUR LIBRARY, QUIETLY ORGANIZED - Books, PDFs and RSS articles in one place - Folders for studying, classics, or whatever you're reading next - Search across your books and jump straight to the passage UNDERSTAND WHAT YOU READ - Select any passage to explain, define, highlight or add a note - Translate a passage and read it alongside the original - Ask Mochi, your reading companion, to summarize a chapter without leaving the page LISTEN WHEN YOUR EYES NEED A REST - Natural voices in several languages, with adjustable speed - Follow along as each sentence is highlighted EVERYTHING YOU SAVE, IN ONE PLACE Bookmarks, notes and highlights, gathered and easy to revisit. EVEN BETTER ON IPHONE DUO Unfold iPhone Duo and your page opens into a true two-page spread. Translations, Mochi and your notes sit beside the page instead of on top of it. Fold it again mid-chapter, or mid-sentence while listening, and you're still on the same line. PRIVATE BY DESIGN Mochi answers quick questions on device, so your reading stays on your iPhone. Mochi features require a device that supports Apple Intelligence. --------------------- Privacy Policy: https://leostudio.global/policies Terms of Use: https://leostudio.global/policies For technical assistance or other inquiries: support@leostudio.global

Screenshots

Athene Reader4 screens
purrpage. Double4 screens

Verdict

The call

The clearest difference is ads: Athene Reader at none against purrpage. Double's shown. Athene Reader also leads on update cadence (daily vs every 6 days) and monetization model (free vs ad-supported). purrpage. Double's advantage is rating (5.0 vs 4.7) and review sentiment (100% vs 88%). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

purrpage. Double holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Athene Reader has 21 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 88% of Athene Reader's written reviews are positive against 100% of purrpage. Double's.

UpkeepUpdate frequency

Athene Reader ships an update daily, purrpage. Double every 6 days. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.

Scorecard7 real differences · 3 level
Athene Reader versus purrpage. Double: the parameters behind the verdict, then further details
ParameterAthene Readerpurrpage. Double
PriceFreeFree
Rating4.7 (21 ratings)5.0 (3 ratings) — better
Positive reviews87.5% of reviews100.0% of reviews — better
Number of ratings21 — better3
Update frequencyDaily — betterEvery 6 days
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.6 — better
Further details — not scored
Size67 MB97 MB
Age rating4+4+
DeveloperAditya SreedharLeoStudio Global

Customer experience

Athene Reader

All ratings21 ratings
Positive90.5%
Neutral4.8%
Negative4.8%
Written reviews16 reviews
Positive87.5%
Neutral6.3%
Negative6.3%

purrpage. Double

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Athene Reader

No in-app purchases

None

purrpage. Double

No in-app purchases

Questions

Is Athene Reader free?
Athene Reader is free to download, with no in-app purchases.
Is purrpage. Double free?
purrpage. Double is free to download, with no in-app purchases.
Which has better reviews, Athene Reader or purrpage. Double?
purrpage. Double is rated higher. Athene Reader averages 4.7 out of 5 from 21 ratings, while purrpage. Double averages 5.0 from 3 ratings.
Do Athene Reader or purrpage. Double have ads?
purrpage. Double shows ads; Athene Reader does not.
Which is updated more often, Athene Reader or purrpage. Double?
Athene Reader ships an update daily, and purrpage. Double every 6 days. Most recently, Athene Reader was updated on November 12, 2026 and purrpage. Double on November 10, 2026.

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