# AI智能写作 vs Fox Writer

The clearest difference is iOS requirement: AI智能写作 at 13.0 against Fox Writer's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. AI智能写作 sells 4 one-off in-app purchases and Fox Writer sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

AI智能写作 ships an update every 3 weeks, Fox Writer monthly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AI智能写作 | Fox Writer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 31 MB | 15 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [月 王](https://appshunter.io/developer/1675187195) | [志文 李](https://appshunter.io/developer/1286601800) |

## What reviewers say

### AI智能写作

[App page](https://appshunter.io/ios/app/ai-ai/id6504860715)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2个月会员 | $7.99 | one-time |
| 1年会员 | $9.99 | one-time |
| 永久会员(优惠) | $12.99 | one-time |
| 永久会员 | $14.99 | one-time |


### Fox Writer

[App page](https://appshunter.io/ios/app/fox-writer/id6705129031)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Every 3 Months Subscription | $6.99 | per 3 months |
| Personal Yearly Subscription | $24.99 | per year |
| Family Yearly Subscription | $39.99 | per year |


## Frequently asked questions

### Is AI智能写作 free?

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

### Is Fox Writer free?

Fox Writer is free to download, with in-app purchases available.

### Do AI智能写作 or Fox Writer have ads?

Neither AI智能写作 nor Fox Writer shows ads.

### Which is updated more often, AI智能写作 or Fox Writer?

AI智能写作 ships an update every 3 weeks, and Fox Writer monthly. Most recently, AI智能写作 was updated on November 8, 2026 and Fox Writer on October 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.*