# 凯智云 vs Door 3rd

The clearest difference is device support: Door 3rd at 2 against 凯智云's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 凯智云 | Door 3rd |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Size | 45 MB | 30 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Guangdong CAS Cogniser Information Technology Co., Ltd.](https://appshunter.io/developer/1704590850) | [建宁 陈](https://appshunter.io/developer/1176148064) |

## What reviewers say

### 凯智云

[App page](https://appshunter.io/ios/app/id6470707534)

**In-app purchases:** none


### Door 3rd

[App page](https://appshunter.io/ios/app/door-3rd/id6749929614)

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

**In-app purchases:** none


## Frequently asked questions

### Is 凯智云 free?

凯智云 is free to download, with no in-app purchases.

### Is Door 3rd free?

Door 3rd is free to download, with no in-app purchases.

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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.*