# AI Essay Optimization vs AI写作

The clearest difference is update cadence: AI Essay Optimization at every 6 days against AI写作's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI Essay Optimization sells 3 in-app purchases, starting at $0.99 per 7 days and AI写作 sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

AI Essay Optimization ships an update every 6 days, AI写作 every 3 weeks. The most recent releases landed on March 14, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | AI Essay Optimization | AI写作 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 37 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [立元 赵](https://appshunter.io/developer/1286588316) | [志勇 苏](https://appshunter.io/developer/1631154393) |

## What reviewers say

### AI Essay Optimization

[App page](https://appshunter.io/ios/app/ai-essay-optimization/id6447417135)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One week | $0.99 | per 7 days |
| one month | $2.99 | per month |
| One year | $12.99 | per year |


### AI写作

[App page](https://appshunter.io/ios/app/ai-ai/id6462860810)

This AI-powered writing assistant generates original content from keywords and can rewrite existing text for higher originality. It offers features like text continuation, grammar checking, and translation, making content creation faster and more efficient.

**Highlights:** AI-powered content generation from keywords, Intelligent text rewriting for originality, Text continuation based on context, Grammar and error checking, English to Chinese translation, Supports various text types (articles, social media, reports)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 28周订阅 | $3.99 | per 7 days |
| 10000字生成 | $3.99 | one-time |
| 50000字生成 | $12.99 | one-time |
| 100000字生成 | $19.99 | one-time |


## Frequently asked questions

### Is AI Essay Optimization free?

AI Essay Optimization is free to download, with in-app purchases available.

### Is AI写作 free?

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

### Do AI Essay Optimization or AI写作 have ads?

Neither AI Essay Optimization nor AI写作 shows ads.

### Which is updated more often, AI Essay Optimization or AI写作?

AI Essay Optimization ships an update every 6 days, and AI写作 every 3 weeks. Most recently, AI Essay Optimization was updated on March 14, 2026 and AI写作 on September 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*