# AI Sleep vs Chat写作助手

The clearest difference is in-app purchases: AI Sleep 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 3 months) and iOS requirement (10.0 vs 12.0). On price, ads and device support 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. AI Sleep asks for nothing beyond the download.

AI Sleep ships an update every 3 months, Chat写作助手 every 5 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | AI Sleep | Chat写作助手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai-sleep/id1526266612/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 46 MB | 33 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [金哲 朴](https://appshunter.io/developer/1526266614) | [启华 易](https://appshunter.io/developer/1718473417) |

## What reviewers say

### AI Sleep

[App page](https://appshunter.io/ios/app/ai-sleep/id1526266612)

This utility app integrates wake-up and sleep aid systems. It records and analyzes sleep data to optimize sleep cycles and works with smart devices for scientific and natural wake-ups. It also uses audio content for effective sleep aid.

**Highlights:** Sleep data recording and analysis, Sleep cycle computation, Smart device integration, Scientific wake-up system, Natural wake-up functionality, Audio content for sleep aid

**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 AI Sleep free?

AI Sleep 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 AI Sleep or Chat写作助手 have ads?

Neither AI Sleep nor Chat写作助手 shows ads.

### Which is updated more often, AI Sleep or Chat写作助手?

AI Sleep ships an update every 3 months, and Chat写作助手 every 5 days. Most recently, AI Sleep was updated on November 3, 2026 and Chat写作助手 on November 4, 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.*