# 大学受験、数学、問題ー自信がつく数学(関関同立、産近甲龍) vs 暗算Blitz

The clearest difference is in-app purchases: 大学受験、数学、問題ー自信がつく数学(関関同立、産近甲龍) at none against 暗算Blitz's 1. 大学受験、数学、問題ー自信がつく数学(関関同立、産近甲龍) also leads on iOS requirement (12.0 vs 17.6). 暗算Blitz's advantage is device support. On price there is nothing between them.

Both are free to download. 暗算Blitz sells 1 one-off in-app purchase. 大学受験、数学、問題ー自信がつく数学(関関同立、産近甲龍) asks for nothing beyond the download.

## The numbers

| Metric | 大学受験、数学、問題ー自信がつく数学(関関同立、産近甲龍) | 暗算Blitz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Daily |
| Size | 105 MB | 54 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kenichi Fujii](https://appshunter.io/developer/1725932598) | [Toshihide KAWAI](https://appshunter.io/developer/1598098272) |

## What reviewers say

### 大学受験、数学、問題ー自信がつく数学(関関同立、産近甲龍)

[App page](https://appshunter.io/ios/app/id6504387214)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 大学受験、数学、問題ー自信がつく数学(関関同立、産近甲龍) free?

大学受験、数学、問題ー自信がつく数学(関関同立、産近甲龍) is free to download, with no in-app purchases.

### Is 暗算Blitz free?

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

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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.*