# 키드키즈 AR vs Chaipang Subtraction

The clearest difference is in-app purchases: 키드키즈 AR at none against Chaipang Subtraction's 1. 키드키즈 AR also leads on update cadence (monthly vs every 3 months) and iOS requirement (8.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Chaipang Subtraction sells 1 one-off in-app purchase. 키드키즈 AR asks for nothing beyond the download.

키드키즈 AR ships an update monthly, Chaipang Subtraction every 3 months. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 키드키즈 AR | Chaipang Subtraction |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 435 MB | 136 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EK Co., Ltd.](https://appshunter.io/developer/384040867) | [Wecref Co., Ltd.](https://appshunter.io/developer/1570555584) |

## What reviewers say

### 키드키즈 AR

[App page](https://appshunter.io/ios/app/ar/id1198426539)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chaipang Subtraction

[App page](https://appshunter.io/ios/app/chaipang-subtraction/id1614401871)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 차이팡 뺄셈 광고제거 | $2.99 | one-time |


## Frequently asked questions

### Is 키드키즈 AR free?

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

### Is Chaipang Subtraction free?

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

### Do 키드키즈 AR or Chaipang Subtraction have ads?

Neither 키드키즈 AR nor Chaipang Subtraction shows ads.

### Which is updated more often, 키드키즈 AR or Chaipang Subtraction?

키드키즈 AR ships an update monthly, and Chaipang Subtraction every 3 months. Most recently, 키드키즈 AR was updated on October 4, 2026 and Chaipang Subtraction on October 7, 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.*