Mythos
AI-Powered EPUB Reader
for iPhone & iPad
Highlight any passage. Get an instant summary, explanation, translation, or answer, without ever leaving the page.
Scan to install It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife. However little known the feelings or views of such a man may be on his first entering a neighbourhood, this truth is so well fixed in the minds of the surrounding families, that he is considered as the rightful property of some one or other of their daughters.
How Mythos reads EPUBs with AI
Import a book, highlight what you want to understand, and let Mythos do the rest.
Drop in any EPUB
Import from Files, iCloud, or AirDrop. No conversion, no fiddly setup.
Highlight what you don't get
Tap and drag on any passage. Mythos detects what you're asking and suggests the right AI action.
Understand it, in place
A summary, explanation, translation, or answer appears inline. Keep reading.
What makes it a smart EPUB reader
Four AI actions that live right where your text selection does. No menus, no typing, no context switching.
Summarize a chapter in seconds
Select a chapter, a page, or a few paragraphs. Mythos gives you the main argument and supporting points in plain language.
Explain any passage
Dense philosophy, scientific jargon, legal text. Highlight it and Mythos rewrites it at the level you want.
Translate without leaving the page
Inline translation across dozens of languages. Built for non-native English readers, one of our top-rated use cases on the App Store.
Ask anything
Type any question about what you just read. Mythos answers from inside your book's context, not as a generic chatbot in another app.
EPUB, PDF, and your own library
Mythos reads the formats that matter for books and documents. Bring what you already own.
The open standard for reflowable ebooks. Every EPUB you own works out of the box, with reflowable text, adjustable typography, and AI actions on every page.
Bring your PDFs alongside your EPUBs. Reading flow and AI actions work the same way, so research papers and reports feel just as native as novels.
Who it's for
Mythos works with any reader, but a few kinds of readers get the most out of it.
Read dense textbooks and research papers without losing momentum. Summarize a chapter, explain a passage, and keep moving.
Consume industry reports and nonfiction faster. Turn jargon into plain language without breaking the reading flow.
Translate and explain as you go. Non-native English speakers are consistently our top reviewers.
AI EPUB reader FAQ
What is Mythos?
Mythos is an AI-powered book reader for iPhone and iPad. It lets you select any text in an EPUB or PDF and instantly get contextual AI actions like summaries, explanations, translations, and character lookups, all without typing anything.
Is Mythos free?
Yes. Mythos is free to download with daily AI actions included.
What platforms is Mythos available on?
Mythos is available on iPhone and iPad via the Apple App Store.
Does Mythos work with DRM-protected EPUBs?
No. Mythos reads DRM-free EPUB 3 files. Books purchased from Apple Books, Kindle, and Kobo are locked with proprietary DRM that third-party apps cannot open. For purchased books, check if the publisher offers a DRM-free download. Public-domain sources like Standard Ebooks and Project Gutenberg, or direct author and publisher EPUBs, all work out of the box.
Can I import EPUBs from iCloud, Google Drive, or Dropbox?
Yes. Any cloud file provider that integrates with iOS Files works. Open the EPUB in the Files app, tap Share, then Open in Mythos.
Does Mythos preserve EPUB formatting like footnotes, tables, and images?
Yes. Mythos renders the full EPUB reflowable layout, keeping embedded images, footnotes, tables of contents, and publisher styling intact. We don't strip anything out. You read the book the way the publisher laid it out, just with AI actions available on any passage you highlight.
Will the inline AI work on EPUBs in languages other than English?
Yes. Mythos AI actions work on every major written language. Summarize a French novel, translate a passage from a Japanese textbook, or explain an idiom in a Spanish essay. Pick your target language from the action menu. It's one of our most-praised features in App Store reviews.
Start reading smarter today.
Get Mythos on the App Store Scan to download on your iPhone Free to download. Works with any EPUB.