# 混沌与秩序 vs 知几Kairos

The clearest difference is iOS requirement: 混沌与秩序 at 15.0 against 知几Kairos's 17.0. 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.

混沌与秩序 ships an update every 2 weeks, 知几Kairos fortnightly. Both last shipped on November 9, 2026.

## The numbers

| Metric | 混沌与秩序 | 知几Kairos |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Size | 74 MB | 11 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [博 刘](https://appshunter.io/developer/1874153056) | [algormula Pte. Ltd.](https://appshunter.io/developer/1828508832) |

## What reviewers say

### 混沌与秩序

[App page](https://appshunter.io/ios/app/id6758644169)

**In-app purchases:** none


### 知几Kairos

[App page](https://appshunter.io/ios/app/kairos/id6758753321)

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

**In-app purchases:** none


## Frequently asked questions

### Is 混沌与秩序 free?

混沌与秩序 is free to download, with no in-app purchases.

### Is 知几Kairos free?

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

### Do 混沌与秩序 or 知几Kairos have ads?

Neither 混沌与秩序 nor 知几Kairos shows ads.

### Which is updated more often, 混沌与秩序 or 知几Kairos?

混沌与秩序 ships an update every 2 weeks, and 知几Kairos fortnightly. Most recently, 混沌与秩序 was updated on November 9, 2026 and 知几Kairos on November 9, 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.*