Mythos Reader vs Quill
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mythos Reader
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.
- AI-powered reading assistance
- Contextual text explanations
- Distraction-free interface
- EPUB and PDF support
- Personalized learning insights
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When a passage makes you pause, ask Mythos Reader. Mythos Reader is an AI book reader for your EPUBs and PDFs. Select text, tap Explain, or ask a question without switching apps. FOLLOW YOUR CURIOSITY Start with a suggested question or write your own. Ask follow-ups to explore the passage and build on the conversation. From unfamiliar words to complex ideas, get help with the text in front of you. KEEP WHAT MATTERS Highlight a passage, add a note, or bookmark a page to come back to. Keep your thoughts alongside your reading. SETTLE INTO YOUR BOOK Adjust fonts, text size and margins in EPUBs. Choose a reading theme, including dark mode. Download your books to read offline. BRING YOUR OWN LIBRARY Import EPUBs and PDFs on iPhone and iPad. PDF explanations require selectable text. Mythos reads the files you bring; it does not include a book catalog. Download Mythos and start reading with understanding. --- Terms of Service: https://www.notion.so/Terms-of-Service-2b3ad7d0ef7f800fbdcded8060cb6d12
Quill
This application enhances your reading experience by providing AI-powered definitions, translations, and contextual explanations for any word or passage within your imported EPUB and PDF books. It offers instant insights to deepen comprehension.
- AI-powered explanations
- Instant definitions
- Contextual understanding
- Import EPUB and PDF
- Word and passage lookup
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Quill is an ebook reader with built-in AI that helps you understand what you read. Import your EPUB and PDF books, then tap any word or passage to get instant definitions, translations, and contextual explanations
Screenshots
Verdict
The clearest difference is rating: Quill at 5.0 against Mythos Reader's 4.2. Quill also leads on in-app purchases (none vs 2). Mythos Reader's advantage is ratings volume (6 vs 1). On price, update cadence, ads 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
Both are free to download. Mythos Reader sells 2 in-app purchases, starting at $9.99 per month. Quill asks for nothing beyond the download.
Quill holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Mythos Reader has 6 ratings behind it against 1, so its average is the more settled of the two.
Mythos Reader ships an update every 2 weeks, Quill every 9 days. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.
| Parameter | Mythos Reader | Quill |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 94 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Sami Ibrahim | 思涵 岳 |
Customer experience
Mythos Reader
Quill
In-app purchases
Mythos Reader
- Mythos Premium$9.991 Month
- Mythos Premium Annual14 Days trial$99.991 Year
Quill
No in-app purchases
