# 防汛云 vs Chronoset

The clearest difference is iOS requirement: 防汛云 at 12.0 against Chronoset's 17. 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.

防汛云 ships an update every 6 weeks, Chronoset every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 防汛云 | Chronoset |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 86 MB | 1 MB |
| Requires iOS | **12.0** | 17 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [钦荣 翁](https://appshunter.io/developer/1278827536) | [维华 肖](https://appshunter.io/developer/925691567) |

## What reviewers say

### 防汛云

[App page](https://appshunter.io/ios/app/id1170967293)

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

**In-app purchases:** none


### Chronoset

[App page](https://appshunter.io/ios/app/chronoset/id1551277057)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 防汛云 free?

防汛云 is free to download, with no in-app purchases.

### Is Chronoset free?

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

### Do 防汛云 or Chronoset have ads?

Neither 防汛云 nor Chronoset shows ads.

### Which is updated more often, 防汛云 or Chronoset?

防汛云 ships an update every 6 weeks, and Chronoset every 3 weeks. Most recently, 防汛云 was updated on November 2, 2026 and Chronoset on November 3, 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.*