# 在地讀寫 vs Book Light 書光光

The clearest difference is in-app purchases: 在地讀寫 at none against Book Light 書光光's 1. 在地讀寫 also leads on update cadence (every 6 days vs every 2 weeks) and iOS requirement (11.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. Book Light 書光光 sells 1 one-off in-app purchase. 在地讀寫 asks for nothing beyond the download.

在地讀寫 ships an update every 6 days, Book Light 書光光 every 2 weeks. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 在地讀寫 | Book Light 書光光 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Size | 116 MB | 84 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Education University of Hong Kong](https://appshunter.io/developer/1130838504) | [Cheuk Yan Law](https://appshunter.io/developer/1861303384) |

## What reviewers say

### 在地讀寫

[App page](https://appshunter.io/ios/app/id1598243347)

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

**In-app purchases:** none


### Book Light 書光光

[App page](https://appshunter.io/ios/app/book-light/id6809764007)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 請我食燒賣 | $1.99 | one-time |


## Frequently asked questions

### Is 在地讀寫 free?

在地讀寫 is free to download, with no in-app purchases.

### Is Book Light 書光光 free?

Book Light 書光光 is free to download, with in-app purchases available.

### Do 在地讀寫 or Book Light 書光光 have ads?

Neither 在地讀寫 nor Book Light 書光光 shows ads.

### Which is updated more often, 在地讀寫 or Book Light 書光光?

在地讀寫 ships an update every 6 days, and Book Light 書光光 every 2 weeks. Most recently, 在地讀寫 was updated on October 30, 2026 and Book Light 書光光 on October 29, 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.*