# 杜杜快乐阅读1A vs RAZ分级阅读器

The clearest difference is in-app purchases: 杜杜快乐阅读1A at none against RAZ分级阅读器's 5. 杜杜快乐阅读1A also leads on iOS requirement (9.0 vs 13.0). RAZ分级阅读器's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. RAZ分级阅读器 sells 3 in-app purchases, starting at $7.99 per month. 杜杜快乐阅读1A asks for nothing beyond the download.

杜杜快乐阅读1A ships an update every 5 months, RAZ分级阅读器 every 3 weeks. The most recent releases landed on September 17, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | 杜杜快乐阅读1A | RAZ分级阅读器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 278 MB | 96 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [长沙市星灿软件开发有限公司](https://appshunter.io/developer/1126375430) | [天津火凤网络科技有限公司](https://appshunter.io/developer/1319807434) |

## What reviewers say

### 杜杜快乐阅读1A

[App page](https://appshunter.io/ios/app/1a/id923234282)

**Features:** macOS Compatibility

**In-app purchases:** none


### RAZ分级阅读器

[App page](https://appshunter.io/ios/app/raz/id6772948910)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 包月畅享会员 | $7.99 | per month |
| 半年卡会员 | $29.99 | one-time |
| 年卡会员 | $39.99 | one-time |


## Frequently asked questions

### Is 杜杜快乐阅读1A free?

杜杜快乐阅读1A is free to download, with no in-app purchases.

### Is RAZ分级阅读器 free?

RAZ分级阅读器 is free to download, with in-app purchases available.

### Do 杜杜快乐阅读1A or RAZ分级阅读器 have ads?

Neither 杜杜快乐阅读1A nor RAZ分级阅读器 shows ads.

### Which is updated more often, 杜杜快乐阅读1A or RAZ分级阅读器?

杜杜快乐阅读1A ships an update every 5 months, and RAZ分级阅读器 every 3 weeks. Most recently, 杜杜快乐阅读1A was updated on September 17, 2026 and RAZ分级阅读器 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.*