# 暗算Blitz vs 慣用色名 ３級

The clearest difference is price: 暗算Blitz at Free against 慣用色名 ３級's $1.99. 暗算Blitz also leads on update cadence (daily vs every 3 weeks). 慣用色名 ３級's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

暗算Blitz is free to download; 慣用色名 ３級 costs $1.99 up front. 暗算Blitz sells 1 one-off in-app purchase. 慣用色名 ３級 asks for nothing beyond the download.

暗算Blitz ships an update daily, 慣用色名 ３級 every 3 weeks. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 暗算Blitz | 慣用色名 ３級 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 54 MB | 1 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Toshihide KAWAI](https://appshunter.io/developer/1598098272) | [Akihiro Sekine](https://appshunter.io/developer/1810496539) |

## What reviewers say

### 暗算Blitz

[App page](https://appshunter.io/ios/app/blitz/id6741730652)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム・ユーザー | $14.99 | one-time |


### 慣用色名 ３級

[App page](https://appshunter.io/ios/app/id6746458601)

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

**In-app purchases:** none


## Frequently asked questions

### Is 暗算Blitz free?

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

### Is 慣用色名 ３級 free?

慣用色名 ３級 costs $1.99, with no in-app purchases.

### Do 暗算Blitz or 慣用色名 ３級 have ads?

暗算Blitz shows ads; 慣用色名 ３級 does not.

### Which is updated more often, 暗算Blitz or 慣用色名 ３級?

暗算Blitz ships an update daily, and 慣用色名 ３級 every 3 weeks. Most recently, 暗算Blitz was updated on October 3, 2026 and 慣用色名 ３級 on October 1, 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.*