# 云智洁学院 vs KnowClock

The clearest difference is in-app purchases: 云智洁学院 at none against KnowClock's 3. 云智洁学院 also leads on iOS requirement (11.0 vs 16.0). KnowClock's advantage is update cadence (fortnightly vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. KnowClock sells 3 in-app purchases, starting at $0.99 per month. 云智洁学院 asks for nothing beyond the download.

云智洁学院 ships an update every 9 months, KnowClock fortnightly. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 云智洁学院 | KnowClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Size | 21 MB | 11 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [北京三和晨光科技发展有限公司](https://appshunter.io/developer/1463353788) | [中周 王](https://appshunter.io/developer/1611287450) |

## What reviewers say

### 云智洁学院

[App page](https://appshunter.io/ios/app/id1463353789)

**Features:** macOS Compatibility

**In-app purchases:** none


### KnowClock

[App page](https://appshunter.io/ios/app/knowclock-kids-clock/id6765656447)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月订阅 | $0.99 | per month |
| 年订阅 | $2.99 | per year |
| 终身解锁 | $4.99 | one-time |


## Frequently asked questions

### Is 云智洁学院 free?

云智洁学院 is free to download, with no in-app purchases.

### Is KnowClock free?

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

### Do 云智洁学院 or KnowClock have ads?

Neither 云智洁学院 nor KnowClock shows ads.

### Which is updated more often, 云智洁学院 or KnowClock?

云智洁学院 ships an update every 9 months, and KnowClock fortnightly. Most recently, 云智洁学院 was updated on October 26, 2026 and KnowClock on October 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.*