# 久趣思维 vs RAZ分级阅读器

The clearest difference is in-app purchases: 久趣思维 at none against RAZ分级阅读器's 5. 久趣思维 also leads on iOS requirement (9.0 vs 13.0). RAZ分级阅读器's advantage is device support (3 vs 1). On price, update cadence and ads 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. 久趣思维 asks for nothing beyond the download.

久趣思维 ships an update every 2 months, RAZ分级阅读器 monthly. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 久趣思维 | RAZ分级阅读器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 202 MB | 100 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Qianshi Technology co., Ltd.](https://appshunter.io/developer/1455615464) | [天津火凤网络科技有限公司](https://appshunter.io/developer/1319807434) |

## What reviewers say

### 久趣思维

[App page](https://appshunter.io/ios/app/id1471956647)

**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 久趣思维 free?

久趣思维 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 久趣思维 or RAZ分级阅读器 have ads?

Neither 久趣思维 nor RAZ分级阅读器 shows ads.

### Which is updated more often, 久趣思维 or RAZ分级阅读器?

久趣思维 ships an update every 2 months, and RAZ分级阅读器 monthly. Most recently, 久趣思维 was updated on October 26, 2026 and RAZ分级阅读器 on October 31, 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.*