# 写作鱼 vs 弧光

The clearest difference is in-app purchases: 弧光 at none against 写作鱼's 4. 弧光 also leads on update cadence (every 2 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 写作鱼 sells 4 in-app purchases, starting at $3.99 per 7 days. 弧光 asks for nothing beyond the download.

写作鱼 ships an update every 6 weeks, 弧光 every 2 weeks. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 写作鱼 | 弧光 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (77 ratings)](https://appshunter.io/ios/app/ai-and-ai/id6447509803/reviews)** | — |
| Number of ratings | **77** | — |
| Positive reviews | 55.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 76 MB | 123 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Oumi Information Technology Co., Ltd](https://appshunter.io/developer/1587540088) | [紫映时代(北京)科技有限公司](https://appshunter.io/developer/1682394155) |

## What reviewers say

### 写作鱼

[App page](https://appshunter.io/ios/app/ai-and-ai/id6447509803)

This AI-powered writing assistant helps users generate various content, from professional reports to creative pieces. It offers features like AI article generation, chatbot interaction, and specialized writing tools for tasks like paraphrasing and summarization.

**Highlights:** AI article generation, AI chatbot, AI paraphrasing, Keyword extraction, Summarization, Text comparison

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $3.99 | per 7 days |
| 500积分 | $2.99 | one-time |
| 1500积分 | $6.99 | one-time |
| 3000积分 | $12.99 | one-time |


### 弧光

[App page](https://appshunter.io/ios/app/id6447720151)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 写作鱼 free?

写作鱼 is free to download, with in-app purchases available.

### Is 弧光 free?

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

### Do 写作鱼 or 弧光 have ads?

Neither 写作鱼 nor 弧光 shows ads.

### Which is updated more often, 写作鱼 or 弧光?

写作鱼 ships an update every 6 weeks, and 弧光 every 2 weeks. Most recently, 写作鱼 was updated on November 3, 2026 and 弧光 on November 6, 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.*