# Natural Syntax vs Lectio Markdown / PDF Reader

The clearest difference is in-app purchases: Lectio Markdown / PDF Reader at none against Natural Syntax's 1. Lectio Markdown / PDF Reader also leads on update cadence (every 2 days vs every 12 months). Natural Syntax's advantage is iOS requirement (12.0 vs 27.0). On price, ads and device support there is nothing between them.

Both are free to download. Natural Syntax sells 1 one-off in-app purchase. Lectio Markdown / PDF Reader asks for nothing beyond the download.

Natural Syntax ships an update every 12 months, Lectio Markdown / PDF Reader every 2 days. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Natural Syntax | Lectio Markdown / PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/natural-syntax/id1380938002/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 20 MB |
| Requires iOS | **12.0** | 27.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Jeremy Buchman](https://appshunter.io/developer/285758094) | [caps-rock](https://appshunter.io/developer/307492617) |

## What reviewers say

### Natural Syntax

[App page](https://appshunter.io/ios/app/natural-syntax/id1380938002)

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.

**Highlights:** 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)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Color Customization | $0.99 | one-time |


### Lectio Markdown / PDF Reader

[App page](https://appshunter.io/ios/app/lectio-markdown-pdf-reader/id1593029619)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Natural Syntax free?

Natural Syntax is free to download, with in-app purchases available.

### Is Lectio Markdown / PDF Reader free?

Lectio Markdown / PDF Reader is free to download, with no in-app purchases.

### Do Natural Syntax or Lectio Markdown / PDF Reader have ads?

Neither Natural Syntax nor Lectio Markdown / PDF Reader shows ads.

### Which is updated more often, Natural Syntax or Lectio Markdown / PDF Reader?

Natural Syntax ships an update every 12 months, and Lectio Markdown / PDF Reader every 2 days. Most recently, Natural Syntax was updated on October 12, 2026 and Lectio Markdown / PDF Reader on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*