Comparison

Readingo vs Mythos

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

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

Readingo4 screens
Mythos3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Readingo ships an update weekly, Mythos every 2 weeks. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 8 level
Readingo versus Mythos: the parameters behind the verdict, then further details
ParameterReadingoMythos
PriceFreeFree
Rating4.8 (113 ratings) — better4.2 (6 ratings)
Positive reviews92.5% of reviews — better85.7% of reviews
Number of ratings113 — better6
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size51 MB77 MB
Age rating4+4+
DeveloperBeijing Idee Technology Co., Ltd.Sami Ibrahim

Customer experience

Readingo

All ratings113 ratings
Positive96.5%
Neutral1.8%
Negative1.8%
Written reviews107 reviews
Positive92.5%
Neutral3.7%
Negative3.7%

Mythos

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

In-app purchases

1 purchases

Readingo

One-time1
  • Reading Pro$9.99
2 purchases

Mythos

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

Questions

Is Readingo free?
Readingo 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, Readingo or Mythos?
Readingo is rated higher. Readingo averages 4.8 out of 5 from 113 ratings, while Mythos averages 4.2 from 6 ratings.
Do Readingo or Mythos have ads?
Neither Readingo nor Mythos shows ads.
Which is updated more often, Readingo or Mythos?
Readingo ships an update weekly, and Mythos every 2 weeks. Most recently, Readingo was updated on September 23, 2026 and Mythos on September 21, 2026.

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