# 강의하는아이들 vs U

The clearest difference is update cadence: 강의하는아이들 at every 2 months against U's every 6 months. U's advantage is iOS requirement (12.1 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

강의하는아이들 ships an update every 2 months, U every 6 months. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 강의하는아이들 | U |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 14 MB | 8 MB |
| Requires iOS | 15.0 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Otwoline](https://appshunter.io/developer/422568234) | [MIN HO KIM](https://appshunter.io/developer/582570599) |

## What reviewers say

### 강의하는아이들

[App page](https://appshunter.io/ios/app/id852898959)

**Features:** Vision Pro support

**In-app purchases:** none


### U

[App page](https://appshunter.io/ios/app/u-class-cast/id1491457129)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 강의하는아이들 free?

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

### Is U free?

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

### Do 강의하는아이들 or U have ads?

Neither 강의하는아이들 nor U shows ads.

### Which is updated more often, 강의하는아이들 or U?

강의하는아이들 ships an update every 2 months, and U every 6 months. Most recently, 강의하는아이들 was updated on September 18, 2026 and U on September 17, 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.*