# SCM RED vs 공수계산노트

The clearest difference is in-app purchases: SCM RED at none against 공수계산노트's 1. SCM RED also leads on ads (none vs shown) and device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. 공수계산노트 sells 1 in-app purchase, starting at $2.99 per month. SCM RED asks for nothing beyond the download.

SCM RED ships an update every 10 days, 공수계산노트 every 5 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | SCM RED | 공수계산노트 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 5 days** |
| Size | 23 MB | 16 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CNFIT Co., Ltd.](https://appshunter.io/developer/1630621688) | [haejishi](https://appshunter.io/developer/6809122543) |

## What reviewers say

### SCM RED

[App page](https://appshunter.io/ios/app/scm-red/id6447786419)

**Features:** macOS Compatibility

**In-app purchases:** none


### 공수계산노트

[App page](https://appshunter.io/ios/app/id6809122541)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $2.99 | per month |


## Frequently asked questions

### Is SCM RED free?

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

### Is 공수계산노트 free?

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

### Do SCM RED or 공수계산노트 have ads?

공수계산노트 shows ads; SCM RED does not.

### Which is updated more often, SCM RED or 공수계산노트?

SCM RED ships an update every 10 days, and 공수계산노트 every 5 days. Most recently, SCM RED was updated on October 25, 2026 and 공수계산노트 on October 29, 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.*