# ChatSK vs DynamicTask

The clearest difference is ads: DynamicTask at none against ChatSK's shown. DynamicTask also leads on update cadence (every 3 days vs every 3 weeks). ChatSK's advantage is iOS requirement (13.0 vs 26.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. ChatSK sells 4 in-app purchases, starting at $7.99 per month and DynamicTask sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ChatSK ships an update every 3 weeks, DynamicTask every 3 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ChatSK | DynamicTask |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 125 MB | 20 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [成都数联科技有限公司](https://appshunter.io/developer/1678462459) | [重庆字梦光年科技有限公司](https://appshunter.io/developer/1813037268) |

## What reviewers say

### ChatSK

[App page](https://appshunter.io/ios/app/chatsk-ocr-and-pdf-scanner-app/id6472871358)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chat扫描王-手机扫描仪会员订阅-月 | $7.99 | per month |
| Chat扫描王-手机扫描仪会员订阅-月 | $13.99 | per month |
| Chat扫描王-手机扫描仪会员订阅-年 | $49.99 | per year |
| 导出高清证件照 | $0.99 | one-time |


### DynamicTask

[App page](https://appshunter.io/ios/app/dynamictask/id6770784340)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $9.99 | per year |
| Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is ChatSK free?

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

### Is DynamicTask free?

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

### Do ChatSK or DynamicTask have ads?

ChatSK shows ads; DynamicTask does not.

### Which is updated more often, ChatSK or DynamicTask?

ChatSK ships an update every 3 weeks, and DynamicTask every 3 days. Most recently, ChatSK was updated on October 7, 2026 and DynamicTask on October 24, 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.*