# 圣原OA vs Chat写作助手

The clearest difference is in-app purchases: 圣原OA at none against Chat写作助手's 6. Chat写作助手's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chat写作助手 sells 6 in-app purchases, starting at $4.99 per 7 days. 圣原OA asks for nothing beyond the download.

圣原OA ships an update every 2 weeks, Chat写作助手 every 5 days. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 圣原OA | Chat写作助手 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Size | 46 MB | 33 MB |
| Requires iOS | **9.0** | 10.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [圣原健康产业有限公司](https://appshunter.io/developer/1435255071) | [启华 易](https://appshunter.io/developer/1718473417) |

## What reviewers say

### 圣原OA

[App page](https://appshunter.io/ios/app/oa/id6463200788)

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

**In-app purchases:** none


### Chat写作助手

[App page](https://appshunter.io/ios/app/chat-ai/id6473689504)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $4.99 | per 7 days |
| 月会员 | $9.99 | per month |
| 季VIP | $14.99 | per 3 months |
| 年会员 | $24.99 | per year |
| 限时永久会员 | $14.99 | one-time |
| 永久会员 | $29.99 | one-time |


## Frequently asked questions

### Is 圣原OA free?

圣原OA is free to download, with no in-app purchases.

### Is Chat写作助手 free?

Chat写作助手 is free to download, with in-app purchases available.

### Do 圣原OA or Chat写作助手 have ads?

Neither 圣原OA nor Chat写作助手 shows ads.

### Which is updated more often, 圣原OA or Chat写作助手?

圣原OA ships an update every 2 weeks, and Chat写作助手 every 5 days. Most recently, 圣原OA was updated on October 7, 2026 and Chat写作助手 on September 30, 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.*