# Natural Syntax vs Book Quote Saver

The clearest difference is update cadence: Book Quote Saver at every 2 months against Natural Syntax's every 12 months. Natural Syntax's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Natural Syntax sells 1 one-off in-app purchase and Book Quote Saver sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Natural Syntax ships an update every 12 months, Book Quote Saver every 2 months. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Natural Syntax | Book Quote Saver |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 14 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Jeremy Buchman](https://appshunter.io/developer/285758094) | [BARTLOMIEJ IGNACY SZCZEPANIAK](https://appshunter.io/developer/1763648038) |

## 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 |


### Book Quote Saver

[App page](https://appshunter.io/ios/app/book-quote-saver-key-notes/id6743495889)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access Promo | $3.99 | one-time |


## Frequently asked questions

### Is Natural Syntax free?

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

### Is Book Quote Saver free?

Book Quote Saver is free to download, with in-app purchases available.

### Do Natural Syntax or Book Quote Saver have ads?

Neither Natural Syntax nor Book Quote Saver shows ads.

### Which is updated more often, Natural Syntax or Book Quote Saver?

Natural Syntax ships an update every 12 months, and Book Quote Saver every 2 months. Most recently, Natural Syntax was updated on October 12, 2026 and Book Quote Saver on October 28, 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.*