# 跟AI学 vs KnowClock

The clearest difference is in-app purchases: 跟AI学 at none against KnowClock's 3. 跟AI学 also leads on iOS requirement (13.4 vs 16.0). 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. 跟AI学 asks for nothing beyond the download.

## The numbers

| Metric | 跟AI学 | KnowClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 27 MB | 11 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [酷得少年(天津)文化传播有限公司](https://appshunter.io/developer/1279715324) | [中周 王](https://appshunter.io/developer/1611287450) |

## What reviewers say

### 跟AI学

[App page](https://appshunter.io/ios/app/ai/id6758009000)

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

**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 跟AI学 free?

跟AI学 is free to download, with no in-app purchases.

### Is KnowClock free?

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

### Do 跟AI学 or KnowClock have ads?

Neither 跟AI学 nor KnowClock shows ads.

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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.*