Comparison

Mythos vs AI Book Reader

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

Head to head
About

Mythos

This intelligent reader uses AI to transform books into interactive experiences. Highlight any text for instant summaries, explanations, or contextual insights, enhancing comprehension and engagement with your reading material. Supports EPUB and PDF formats for a personalized learning journey.

Highlights
  • AI-powered reading assistance
  • Contextual text explanations
  • Distraction-free interface
  • EPUB and PDF support
  • Personalized learning insights
Features
Read full description

Understand anything you read instantly. Mythos is an AI reading companion that turns highlights into insights, right on the page. Highlight a passage. Mythos detects what you need — a summary, an explanation, a concept breakdown — and delivers it inline. No typing, no switching apps, no interruption to your flow. Built for readers who want to go deeper: • Instant Understanding: Highlight any sentence and get clear explanations, summaries, or context in one tap. • Reads Your Intent: Mythos detects whether you need a character recap, a concept breakdown, or a translation, and responds accordingly. • Zero Friction: Everything happens inline. No chatbots, no sidebars, no copy-paste workflows. • Deep Focus Mode: A clean, distraction-free reading environment. • Your Library, Your Way: Import EPUBs and PDFs. Read what you already own. • Learns With You: Mythos adapts to your reading style and helps you explore deeper layers of meaning over time. Whether you're a student working through dense textbooks, a professional digesting reports, or a curious reader tackling challenging nonfiction - Mythos makes every book more accessible. Download Mythos and start reading with understanding. --- Terms of Service: https://www.notion.so/Terms-of-Service-2b3ad7d0ef7f800fbdcded8060cb6d12

About

AI Book Reader

Features
Read full description

AI Book Reader is a full-featured EPUB reader with built-in AI. Open any EPUB book, highlight a word or passage, and a smart context menu appears — translate, explain, generate an illustration, or run any custom AI action you've created. Whether you're reading fiction, studying textbooks, learning a language, or exploring non-fiction — AI Book Reader gives you the tools to understand, visualize, and engage with every page like never before. HIGHLIGHT ANY TEXT — GET AI INSTANTLY Select any word, sentence, or paragraph and the AI context menu appears right away. No switching apps, no copy-pasting. The AI works directly inside your book. BUILT-IN AI ACTIONS • Translate — instantly translate any passage to your language • Explain — get a clear, simple explanation of complex text • Illustrate — generate an image to bring a scene or character to life BUILD YOUR OWN AI ACTIONS This is where AI Book Reader goes beyond any other reader. Create completely custom AI actions tailored to your reading style — rewrite text in simpler language, identify all characters in a scene, generate study flashcards, write a critical analysis, or anything else you can think of. Your actions are saved and available in every book. Your first AI generation is free. Continued access to AI features requires a subscription. CLEAN READING EXPERIENCE • Distraction-free interface designed for long reading sessions • Adjustable font size, line spacing, and themes • Full EPUB format support • Reading progress saved automatically AI Book Reader is for curious readers, students, language learners, and anyone who wants more from the books they read. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mythos3 screens
AI Book Reader4 screens

Verdict

The call

The clearest difference is update cadence: Mythos at every 2 weeks against AI Book Reader's monthly. On price, ads, 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. Mythos sells 2 in-app purchases, starting at $9.99 per month and AI Book Reader sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Mythos ships an update every 2 weeks, AI Book Reader monthly. The most recent releases landed on September 21, 2026 and August 23, 2026 respectively.

Scorecard1 real difference · 9 level
Mythos versus AI Book Reader: the parameters behind the verdict, then further details
ParameterMythosAI Book Reader
PriceFreeFree
Rating4.2 (6 ratings) — better
Positive reviews85.7% of reviews
Number of ratings6 — better
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size77 MB40 MB
Age rating4+4+
DeveloperSami IbrahimKanat Magdanov

In-app purchases

2 purchases

Mythos

Subscriptions2
  • Mythos Premium$9.991 Month
  • Mythos Premium Annual14 Days trial$99.991 Year
2 purchases

AI Book Reader

Subscriptions2
  • Weekly Premium$7.997 Days
  • Monthly Premium$29.991 Month

Questions

Is Mythos free?
Mythos is free to download, with in-app purchases available.
Is AI Book Reader free?
AI Book Reader is free to download, with in-app purchases available.
Do Mythos or AI Book Reader have ads?
Neither Mythos nor AI Book Reader shows ads.
Which is updated more often, Mythos or AI Book Reader?
Mythos ships an update every 2 weeks, and AI Book Reader monthly. Most recently, Mythos was updated on September 21, 2026 and AI Book Reader on August 23, 2026.

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