# 計算アタック vs 色彩検定Pass

The clearest difference is in-app purchases: 計算アタック at none against 色彩検定Pass's 1. 計算アタック also leads on iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. 色彩検定Pass sells 1 one-off in-app purchase. 計算アタック asks for nothing beyond the download.

## The numbers

| Metric | 計算アタック | 色彩検定Pass |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 weeks |
| Size | 31 MB | 40 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wataru Naotsuka](https://appshunter.io/developer/1821566933) | [KANDK](https://appshunter.io/developer/1867080143) |

## What reviewers say

### 計算アタック

[App page](https://appshunter.io/ios/app/id6749502322)

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

**In-app purchases:** none


### 色彩検定Pass

[App page](https://appshunter.io/ios/app/pass-23/id6781149830)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 色彩検定Pass プレミアム | $1.99 | one-time |


## Frequently asked questions

### Is 計算アタック free?

計算アタック is free to download, with no in-app purchases.

### Is 色彩検定Pass free?

色彩検定Pass is free to download, with in-app purchases available.

### Do 計算アタック or 色彩検定Pass have ads?

Both 計算アタック and 色彩検定Pass show 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.*