Readingo vs Mythos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Readingo
This app is a versatile reader supporting numerous file formats including TXT, EPUB, MOBI, and PDF. It offers extensive customization for reading themes, fonts, and bookshelf styles, along with advanced features like highlighting, notes, and audiobook support.
- Supports TXT, EPUB, MOBI, PDF, and more
- Opens compressed files (RAR, ZIP)
- Comprehensive category management
- Extensive formatting and page-turning options
- 24 built-in reading themes
- Highlighting and notes
- Audiobook support
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Basic Features: A powerful novel reading tool Currently supports TXT, EPUB, MOBI, AZW, AZW3, DOC, DOCX, CHM, UMD and PDF file formats. Supports opening RAR, ZIP, 7Z, and TAR compressed files directly within the app Comprehensive category management Extensive formatting options and multiple page-turning methods 24 built-in reading themes with color and texture options Clean interface and user-friendly interaction Global night mode Advanced Features: Powerful statistics system Highlighting and notes WiFi remote management Auto-read feature Audiobook support Customizable reading themes Customizable bookshelf styles Customizable covers Customizable fonts Direct TXT file editing More powerful configurations available in the Pro version
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.
- AI-powered reading assistance
- Contextual text explanations
- Distraction-free interface
- EPUB and PDF support
- Personalized learning insights
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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
Verdict
The clearest difference is rating: Readingo at 4.8 against Mythos's 4.2. Readingo also leads on ratings volume (113 vs 6). On price, review sentiment, update cadence and ads 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. Readingo sells 1 one-off in-app purchase 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.
Readingo holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Readingo has 113 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 93% of Readingo's written reviews are positive against 86% of Mythos's.
Readingo ships an update weekly, Mythos every 2 weeks. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.
| Parameter | Readingo | Mythos |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (113 ratings) — better | 4.2 (6 ratings) |
| Positive reviews | 92.5% of reviews — better | 85.7% of reviews |
| Number of ratings | 113 — better | 6 |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 51 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | Beijing Idee Technology Co., Ltd. | Sami Ibrahim |
Customer experience
Readingo
Mythos
In-app purchases
Readingo
- Reading Pro$9.99
Mythos
- Mythos Premium$9.991 Month
- Mythos Premium Annual14 Days trial$99.991 Year









