# 天成云 vs Ai张江

The clearest difference is iOS requirement: Ai张江 at 13.0 against 天成云's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

天成云 ships an update every 5 weeks, Ai张江 every 2 months. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | 天成云 | Ai张江 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 88 MB | 102 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Yinkou Tiancheng Fire-fighting Equipment Co., Ltd.](https://appshunter.io/developer/1255155275) | [上海张江智荟科技有限公司](https://appshunter.io/developer/1635094710) |

## What reviewers say

### 天成云

[App page](https://appshunter.io/ios/app/id1255155276)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ai张江

[App page](https://appshunter.io/ios/app/ai/id1635094708)

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

**In-app purchases:** none


## Frequently asked questions

### Is 天成云 free?

天成云 is free to download, with no in-app purchases.

### Is Ai张江 free?

Ai张江 is free to download, with no in-app purchases.

### Do 天成云 or Ai张江 have ads?

Neither 天成云 nor Ai张江 shows ads.

### Which is updated more often, 天成云 or Ai张江?

天成云 ships an update every 5 weeks, and Ai张江 every 2 months. Most recently, 天成云 was updated on September 29, 2026 and Ai张江 on September 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.*