Comparison

Yomu EBook Reader vs Mythos

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

Head to head
About

Yomu EBook Reader

An independent ebook reader designed for distraction-free reading with customizable styles and layouts. Supports a wide range of formats and offers robust library management features. Cloud synchronization is available for pro users.

Highlights
  • Customizable reading styles and themes
  • Supports EPUB, MOBI, Kindle, CBZ, CBR, PDF
  • Dynamic text and margin adjustment
  • Library organization with folders and tags
  • Cloud synchronization for books and annotations (Pro)
  • Text highlighting and note-taking
  • Widgets for quick access to books and quotes
Features
Read full description

Yomu is an independent reader for book lovers. Yomu’s design is carefully crafted for ebooks and offers custom styles for better readability and distraction-free reading. Designed to let you focus on reading, Yomu has no unnecessary preferences. Just open a book and start reading. Yomu’s fluid layout dynamically adjusts all text properties and margins depending on your preferred styles and device, giving you an optimal reading experience. FORMATS Yomu supports standard ebooks without digital rights management. Supported formats: - EPub (.epub) - Mobi (.mobi, .prc) - Kindle (.azw, .azw3, .kf8) - Comics (.cbz, .cbr) - PDF (.pdf) Choose free books from publishers such as Standard Ebooks or Project Gutenberg. Download ebooks directly from your browser or copy files from other apps. Import files with iCloud Drive, iTunes File Sharing, or from Dropbox, Google Drive, OneDrive, OPDS and Calibre. READER The reader's design is carefully crafted for ebooks and offers custom styles for better readability. Choose your favorite theme font (Lato, Georgia, Lexend, OpenDyslexic, ...), reader mode (day, sepia, grey, black, ...), select a preset or custom font size, content layout (page, scroll) and many more options. All settings can be saved as your personal default for each book. Swipe or tap to go to the next page. You can also use the book's content outline or table of contents to navigate to another chapter. While reading EPub, Mobi and Kindle books, select text to take notes or highlight favorite sections. Create bookmarks or search inside ebooks to quickly find anything you are looking for. LIBRARY Organise your books in an easy to use library. Manage your library by creating folders or tags to organize your books. Sort your collection either by title, author, series, recently read or drag and drop for a custom order. You can edit a document's title, author, summary, cover or any other meta data. Save or export your books with all information and annotations in text, markdown or json format. CLOUD Yomu's Cloud Library (pro only) stores your books and annotations securely in Apple's iCloud. Keep all your ebooks safe and at hand on whatever device. Every time you change something on one device, it's synced to all your other devices. Always have the latest version, when you start reading on your iPad and continue on your iPhone on the go. Please note that you need to be signed in on your device with the same Apple ID on all platforms. WIDGETS See your recently read books or highlighted quotes. Yomu includes widgets to quickly view and open your books and quotes. Add a widget from the gallery and choose a list from the options. Tap on an entry to continue reading where you left off. YOMU PRO Yomu is free to use and includes all basic features. Every ebook format, theme or setting is available and lets you try out the unrestricted reader. However, the free version has some limitations and does not include certain features. Upgrade to Yomu Pro to get: - Cloud Library: Store and sync your library with Apple’s iCloud. - Unlimited Documents: No limit on the number of documents. - No Advertisement: Free version can display ads. Yomu is an independent app, your purchase supports the further development. When you buy an in-app purchase, you are doing so through Apple’s App Store and agree to their terms and conditions. Payments will be charged to the credit card of your Apple account. SERVICE Yomu is available for iPhone, iPad and Mac. In contrast to other apps, Yomu does not collect or sell any personal information. And it keeps your data private. Terms of Service: https://www.yomu-reader.com/terms/ Privacy Policy: https://www.yomu-reader.com/privacy/ Support: https://www.yomu-reader.com/support/

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

Screenshots

Yomu EBook Reader4 screens
Mythos3 screens

Verdict

The call

The clearest difference is rating: Yomu EBook Reader at 4.8 against Mythos's 4.2. Yomu EBook Reader also leads on ratings volume (1.6K vs 6). Mythos's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (15.1 vs 17.0). On price, review sentiment, ads and in-app purchases 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. Yomu EBook Reader sells 2 one-off in-app purchases and Mythos sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Yomu EBook Reader holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Yomu EBook Reader has 1.6K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 80% of Yomu EBook Reader's written reviews are positive against 86% of Mythos's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Yomu EBook Reader ships an update monthly, Mythos every 2 weeks. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 6 level
Yomu EBook Reader versus Mythos: the parameters behind the verdict, then further details
ParameterYomu EBook ReaderMythos
PriceFreeFree
Rating4.8 (1.6K ratings) — better4.2 (6 ratings)
Positive reviews79.9% of reviews85.7% of reviews — better
Number of ratings1.6K — better6
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size60 MB77 MB
Age rating4+4+
DeveloperBeat RaessSami Ibrahim

Customer experience

Yomu EBook Reader

All ratings1,609 ratings
Positive95.4%
Neutral1.9%
Negative2.7%
Written reviews741 reviews
Positive79.9%
Neutral6.9%
Negative13.2%

Mythos

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Bugs and requests

Yomu EBook Reader

Reported bugs

4 issues
  • Occasional crashes or freezes
  • Inconsistent behavior when swiping to turn pages
  • Syncing issues between devices
  • Formatting problems with certain ebook files

Requested features

6 requests
  • Add support for text-to-speech
  • Improve PDF handling with annotation and text selection
  • Implement nested folder structure for better organization
  • Expand font and theme customization options
  • Introduce a continuous scrolling mode
Show 1 more
  • Add a more prominent 'return to last read position' feature

Mythos

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Yomu EBook Reader

One-time2
  • Yomu Pro$7.99
  • Yomu Pro (Karma)$12.99
2 purchases

Mythos

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

Questions

Is Yomu EBook Reader free?
Yomu EBook Reader is free to download, with in-app purchases available.
Is Mythos free?
Mythos is free to download, with in-app purchases available.
Which has better reviews, Yomu EBook Reader or Mythos?
Yomu EBook Reader is rated higher. Yomu EBook Reader averages 4.8 out of 5 from 1.6K ratings, while Mythos averages 4.2 from 6 ratings.
Do Yomu EBook Reader or Mythos have ads?
Neither Yomu EBook Reader nor Mythos shows ads.
Which is updated more often, Yomu EBook Reader or Mythos?
Yomu EBook Reader ships an update monthly, and Mythos every 2 weeks. Most recently, Yomu EBook Reader was updated on September 25, 2026 and Mythos on September 21, 2026.

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