# 智成软件 vs Knot Diary

The clearest difference is in-app purchases: 智成软件 at none against Knot Diary's 3. 智成软件 also leads on iOS requirement (15 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Knot Diary sells 3 in-app purchases, starting at $0.99 per month. 智成软件 asks for nothing beyond the download.

智成软件 ships an update every 10 days, Knot Diary every 11 days. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 智成软件 | Knot Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 11 days |
| Size | 106 MB | 3 MB |
| Requires iOS | **15** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zhengzhou Zhicheng Software Technology Co., Ltd.](https://appshunter.io/developer/1097031347) | [桃花 秦](https://appshunter.io/developer/1877272960) |

## What reviewers say

### 智成软件

[App page](https://appshunter.io/ios/app/id1098128256)

**Features:** Vision Pro support

**In-app purchases:** none


### Knot Diary

[App page](https://appshunter.io/ios/app/knot-diary/id6801838141)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knot Diary Pro (Monthly) | $0.99 | per month |
| Knot Diary Pro (Quarterly) | $2.99 | per 3 months |
| Knot Diary Pro (Yearly) | $6.99 | per year |


## Frequently asked questions

### Is 智成软件 free?

智成软件 is free to download, with no in-app purchases.

### Is Knot Diary free?

Knot Diary is free to download, with in-app purchases available.

### Do 智成软件 or Knot Diary have ads?

Neither 智成软件 nor Knot Diary shows ads.

### Which is updated more often, 智成软件 or Knot Diary?

智成软件 ships an update every 10 days, and Knot Diary every 11 days. Most recently, 智成软件 was updated on October 24, 2026 and Knot Diary on October 6, 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.*