# 格琳斯云课堂 vs KnowClock

The clearest difference is in-app purchases: 格琳斯云课堂 at none against KnowClock's 3. 格琳斯云课堂 also leads on iOS requirement (12.0 vs 16.0). KnowClock's advantage is update cadence (every 11 days vs every 21 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. 格琳斯云课堂 asks for nothing beyond the download.

格琳斯云课堂 ships an update every 21 months, KnowClock every 11 days. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 格琳斯云课堂 | KnowClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 11 days** |
| Size | 255 MB | 8 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京格伦教育](https://appshunter.io/developer/1250798058) | [中周 王](https://appshunter.io/developer/1611287450) |

## What reviewers say

### 格琳斯云课堂

[App page](https://appshunter.io/ios/app/id1545366195)

**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 | $1.99 | per year |
| 终身解锁 | $2.99 | one-time |


## Frequently asked questions

### Is 格琳斯云课堂 free?

格琳斯云课堂 is free to download, with no in-app purchases.

### Is KnowClock free?

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

### Do 格琳斯云课堂 or KnowClock have ads?

Neither 格琳斯云课堂 nor KnowClock shows ads.

### Which is updated more often, 格琳斯云课堂 or KnowClock?

格琳斯云课堂 ships an update every 21 months, and KnowClock every 11 days. Most recently, 格琳斯云课堂 was updated on October 27, 2026 and KnowClock on October 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.*