# SD Scan Tool vs AI聊天回复助手

The clearest difference is price: SD Scan Tool at Free against AI聊天回复助手's $0.99. SD Scan Tool also leads on iOS requirement (8.0 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

SD Scan Tool is free to download; AI聊天回复助手 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | SD Scan Tool | AI聊天回复助手 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[2.5 (2 ratings)](https://appshunter.io/ios/app/ai/id6739335369/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Paid |
| Size | 3 MB | 1 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wetrusty](https://appshunter.io/developer/917655408) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### SD Scan Tool

[App page](https://appshunter.io/ios/app/sd-scan-tool/id1259056999)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI聊天回复助手

[App page](https://appshunter.io/ios/app/ai/id6739335369)

Enhance your conversations with intelligent text refinement. This tool automatically adjusts tone and style to suit your chat partner, ensuring clear and appropriate communication. Easily copy and paste polished messages for work, social, or daily interactions.

**Highlights:** Personalized content refinement, Automatic tone and style adjustment, Instant optimized text generation, One-click copy for easy sharing, Suitable for work, social, and daily chats

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

**In-app purchases:** none


## Frequently asked questions

### Is SD Scan Tool free?

SD Scan Tool is free to download, with no in-app purchases.

### Is AI聊天回复助手 free?

AI聊天回复助手 costs $0.99, with no in-app purchases.

### Do SD Scan Tool or AI聊天回复助手 have ads?

Neither SD Scan Tool nor AI聊天回复助手 shows ads.

### Which is updated more often, SD Scan Tool or AI聊天回复助手?

SD Scan Tool ships an update every 2 months, and AI聊天回复助手 every 2 months. Most recently, SD Scan Tool was updated on October 8, 2026 and AI聊天回复助手 on October 1, 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.*