Natural Syntax vs Epubgle reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Natural Syntax
This app enhances reading comprehension by subtly styling text to highlight parts of speech, similar to syntax highlighting in programming. It offers a native ePub reader with full text search and a discovery service for public domain books. Users can customize styling and themes for an improved reading experience.
- Syntax highlighting for parts of speech
- Native paginated ePub display
- Full text search
- Public domain book discovery
- Customizable colors and styles
- Multiple themes (Dark, Light, White)
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As programmers read source code we passively absorb some of the meaning via syntax highlighting for the language. NaturalSyntax aims to do the same thing with natural human language, this will improve reading comprehension and understanding by passively absorbing the parts of speech via subtle styling of the text. Features: • Fully native paginated display of syntax highlighted parts of speech for ePub files • Full text book search • ePub parsed on demand for improved experience • Includes discovery service to download thousands of public domain books • Allows customization of colors and styles for each part of speech • Includes Dark, Light and White themes with different default colors • Allows you to turn on or off highlighting of each part of speech • Synchronizes preferences between all your devices • Uses system interface for interacting with your files • Does not collect or store any personal information Limitations: • Can only process English ePub files • Can only search for public domain books when signed into iCloud
Epubgle reader
This app allows you to read EPUB ebooks on your iPhone, iPad, and Mac. It supports both reflowable and fixed-layout layouts, offering customizable text and page display options. Enjoy features like automatic saving of your last reading position and importing books from various sources.
- EPUB reflowable and fixed-layout support
- Import EPUBs via Share menu or email
- Customizable text size, line height, and margins
- Automatic saving of last reading page
- Audio playback and video support
- Page turning and menu toggle buttons
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About this app - EPUB reflowable layout viewer, EPUB fixed layout viewer on iPhones, iPads and Mac Features - Available on iOS iPhones, iPads. Also Mac. - Open files with .epub extension. - Customized TOC provided additionally. - Reopen to the location of last reading page. - Import .epub eBooks by selecting "Share" context menu which pops up when you long press tap .epub file in Files built-in App. - Import .epub eBooks from the email app's file attachments. - Choose Options that have one page(portrait) or two pages(landscape) with fixed-layout book. - Scroll type(portrait) with reflowable-layout book. - Audio playback and video full screen switch. - Media Overlay SMIL support to fixed-layout ePUB With Read Aloud Feature. - Track the path of moving pages. - To turn pages and toggle menus, use bottom buttons respectively. - Adjust text size, line height, margins. - Scan .epub ePUB files on your device
Screenshots
Verdict
The clearest difference is review sentiment: Natural Syntax at 67% against Epubgle reader's 0%. Natural Syntax also leads on ads (none vs shown). Epubgle reader's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 12 months). On price, device support and iOS requirement 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. Natural Syntax sells 1 one-off in-app purchase. Epubgle reader asks for nothing beyond the download.
Natural Syntax ships an update every 12 months, Epubgle reader every 2 months. The most recent releases landed on June 1, 2026 and June 19, 2026 respectively.
| Parameter | Natural Syntax | Epubgle reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 12 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 11 MB | 20 MB |
| Age rating | 12+ | 17+ |
| Developer | Jeremy Buchman | Contents Color CO.,LTD. |
Customer experience
Natural Syntax
Epubgle reader
In-app purchases
Natural Syntax
- Color Customization$0.99
Epubgle reader
No in-app purchases
Questions
Is Natural Syntax free?
Is Epubgle reader free?
Do Natural Syntax or Epubgle reader have ads?
Which is updated more often, Natural Syntax or Epubgle reader?
Other comparisons
