# ChatSK vs iSpacekeeper

The clearest difference is ads: iSpacekeeper at none against ChatSK's shown. iSpacekeeper also leads on update cadence (every 4 days vs every 3 weeks). ChatSK's advantage is iOS requirement (13.0 vs 16.6). 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 iSpacekeeper sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ChatSK ships an update every 3 weeks, iSpacekeeper every 4 days. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ChatSK | iSpacekeeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 125 MB | 28 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [成都数联科技有限公司](https://appshunter.io/developer/1678462459) | [元甲 陈](https://appshunter.io/developer/6784329174) |

## 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 |


### iSpacekeeper

[App page](https://appshunter.io/ios/app/ispacekeeper-space-manager/id6784493687)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iSpaceKeeper-week | $4.99 | per 7 days |
| iSpaceKeeper. | $9.99 | per month |
| iSpacekeeper. | $19.99 | per 3 months |


## Frequently asked questions

### Is ChatSK free?

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

### Is iSpacekeeper free?

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

### Do ChatSK or iSpacekeeper have ads?

ChatSK shows ads; iSpacekeeper does not.

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

ChatSK ships an update every 3 weeks, and iSpacekeeper every 4 days. Most recently, ChatSK was updated on November 4, 2026 and iSpacekeeper on October 28, 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.*