# 超好用韩语语法书 vs 小读书

The clearest difference is review sentiment: 小读书 at 100% against 超好用韩语语法书's 14%. 小读书 also leads on in-app purchases (none vs 1) and update cadence (every 8 days vs every 12 months). 超好用韩语语法书's advantage is iOS requirement (11.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 超好用韩语语法书 sells 1 one-off in-app purchase. 小读书 asks for nothing beyond the download.

超好用韩语语法书 ships an update every 12 months, 小读书 every 8 days. The most recent releases landed on August 31, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | 超好用韩语语法书 | 小读书 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/3ai/id6743986609/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 14.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 8 days** |
| Monetization | — | Free |
| Size | 52 MB | 12 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [北京触阅信息科技有限公司](https://appshunter.io/developer/1420329654) | [zhijun li](https://appshunter.io/developer/1047598269) |

## What reviewers say

### 超好用韩语语法书

[App page](https://appshunter.io/ios/app/id1031009954)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 超好用韩语语法书 | $2.99 | one-time |


### 小读书

[App page](https://appshunter.io/ios/app/3ai/id6743986609)

This AI-powered reading companion offers intelligent book summaries, AI-assisted note refinement, personalized reading lists, and generated reading guides. It helps users efficiently process book content, organize notes, and navigate their reading journey with ease.

**Highlights:** AI-generated book summaries, AI-assisted note refinement, Personalized reading list creation, Reading guide generation, AI book discussions, Curated book selection

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

**In-app purchases:** none


## Frequently asked questions

### Is 超好用韩语语法书 free?

超好用韩语语法书 is free to download, with in-app purchases available.

### Is 小读书 free?

小读书 is free to download, with no in-app purchases.

### Do 超好用韩语语法书 or 小读书 have ads?

Neither 超好用韩语语法书 nor 小读书 shows ads.

### Which is updated more often, 超好用韩语语法书 or 小读书?

超好用韩语语法书 ships an update every 12 months, and 小读书 every 8 days. Most recently, 超好用韩语语法书 was updated on August 31, 2026 and 小读书 on September 7, 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.*