4.9 on the App Store Built for iPhone & iPad

Never read past
a sentence you didn't get.

Highlight the part that lost you. Mythos reads the passage and puts the question you were about to ask right under your thumb. No prompt to write, no app to switch to, no page to leave.

Three steps to a smarter read.

Upload a book, read as you normally would, and let Mythos handle the rest when curiosity strikes.

Upload your book

Drop in any EPUB or PDF. Your library, your way.

Mythos book library screen on iPhone showing uploaded books with reading progress

Read and select

Read naturally. When curiosity strikes, highlight any passage.

Mythos reading view showing text selection with AI action panel offering Copy, Highlight, Explain, and Ask

Get instant insight

Mythos detects your intent and offers smart actions like summaries, explanations, and more.

Mythos AI action panel expanded showing Ask input and AI-generated intent questions like Who were the Medici

You never write
the prompt.

Mythos reads what you highlighted and suggests the question that fits it. A character name is not a dense argument, and neither is a word you have never seen before. Tap the one you meant.

You highlight

The siege was lifted only when Ambrogio Spinola arrived at the walls with an army three months unpaid.

Mythos suggests Who is Ambrogio Spinola?
You highlight

Read properly, the book is a bildungsroman in the strictest sense of the term.

Mythos suggests Define 'bildungsroman'
You highlight

Entropy is a measure of the number of microstates consistent with a given macrostate, which is why it rises.

Mythos suggests Simplify this explanation How does entropy work?

You can still type your own question, and follow up as long as you like. You just never have to start from an empty box.

Highlight text.
Mythos does the rest.

Select a character name and Mythos offers to introduce them. Select a dense paragraph and it offers to simplify it. Select a term you have never met and it defines it in this author's sense. You did not type any of that.

Highlight text. Mythos knows what you need.

Select any passage and Mythos understands your intent: summary, explanation, translation, or deeper context.

Every book reads differently. Mythos adapts.

AI suggestions change based on what you're reading. A character name triggers different actions than a complex argument or a foreign phrase.

AI that vanishes when you don't need it.

AI assistance appears only when you ask and disappears when you don't. Your reading flow stays unbroken.

A reading space that feels like a book, not an app.

A warm, calm interface designed for deep focus. Supports EPUB and PDF with a reader-first philosophy.

How Mythos compares

The only reader built from the ground up with AI-powered text understanding. Here's how it stacks up.

Feature Mythos Kindle Apple Books Google Play Books Readwise Reader ChatGPT + PDF
AI-powered text selection
Intent detection (no typing needed)
Contextual summaries & explanations
AI adapts to content type
Built-in bookstore

Other readers show you books. Mythos helps you understand them.

Built for how you read

Whether you're studying, working, or reading for pleasure, Mythos meets you where you are.

The Student

You're deep in a dense textbook. You highlight a passage you don't fully understand. Mythos breaks it down instantly. No switching apps, no typing prompts.

The Curious Reader

You're reading a novel and encounter an unfamiliar historical reference. One tap, and Mythos gives you the backstory without pulling you out of the narrative.

The best reading tool is the one you forget is there, until the moment you need it.

Mythos isn't a chatbot bolted onto a reader. It's a reading environment designed from first principles with AI woven into every layer. Every interaction is contextual, every suggestion is earned, and the reading surface stays sacred.

Frequently asked questions

What is Mythos?

Mythos is an AI-powered book reader for iPhone and iPad. Highlight a passage in an EPUB or PDF that you didn't understand, and Mythos suggests the question you were about to ask, then answers it on the page. You never leave the book.

Who is Mythos for?

Mythos is built for students, professional learners, non-fiction readers, and anyone who reads deeply and wants to understand more. If you highlight passages and wish you could instantly get context, Mythos is for you.

What file formats does Mythos support?

Mythos supports EPUB and PDF files. You can upload any book from your device.

How is Mythos different from Kindle or Apple Books?

Traditional readers display books. Mythos understands them. When you select text, Mythos detects your intent and suggests relevant AI actions. No menus, no typing, no leaving the page.

How is Mythos different from using ChatGPT with a PDF?

ChatGPT requires you to leave your book, switch apps, type a prompt, and paste text. Mythos keeps everything inline. Select text, tap an action, get your answer. The AI is inside the reading experience, not outside it.

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.

Can I read offline?

Yes. You can read any book offline, anytime. AI-powered features like summaries and explanations require an internet connection, but your reading experience is never interrupted by connectivity.

How good are the AI responses?

Mythos is powered by state-of-the-art language models. Responses are contextual to what you're reading, not generic chatbot answers. The AI understands the passage, your book, and the kind of help you're likely looking for.

Is my data safe?

Yes. All your data is stored safely. Mythos is built for readers, not advertisers. Your reading activity is yours.

Does Mythos support audiobooks?

Not currently. Mythos is focused on text-based reading: EPUB and PDF files.

Ready to read
with intelligence?

4.9 on the App Store
Download for iOS
QR code to download Mythos from the App Store Scan to download on your iPhone

Free to download. No credit card required.