# 天科云 vs 云拓IM

The clearest difference is update cadence: 云拓IM at every 9 days against 天科云's every 6 weeks. 云拓IM also leads on iOS requirement (12.1 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

天科云 ships an update every 6 weeks, 云拓IM every 9 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | 天科云 | 云拓IM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Size | 171 MB | 89 MB |
| Requires iOS | 14.0 | **12.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tianjin TianFang Science and Technology Development Co.,Ltd.](https://appshunter.io/developer/917218993) | [Newtop LLC](https://appshunter.io/developer/852343038) |

## What reviewers say

### 天科云

[App page](https://appshunter.io/ios/app/id1081741467)

**Features:** Vision Pro support

**In-app purchases:** none


### 云拓IM

[App page](https://appshunter.io/ios/app/im/id6474583187)

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

**In-app purchases:** none


## Frequently asked questions

### Is 天科云 free?

天科云 is free to download, with no in-app purchases.

### Is 云拓IM free?

云拓IM is free to download, with no in-app purchases.

### Do 天科云 or 云拓IM have ads?

Neither 天科云 nor 云拓IM shows ads.

### Which is updated more often, 天科云 or 云拓IM?

天科云 ships an update every 6 weeks, and 云拓IM every 9 days. Most recently, 天科云 was updated on October 7, 2026 and 云拓IM on October 7, 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.*