# 暗算Blitz vs マハラジャ算数

The clearest difference is in-app purchases: マハラジャ算数 at none against 暗算Blitz's 1. 暗算Blitz's advantage is update cadence (daily vs every 3 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 暗算Blitz sells 1 one-off in-app purchase. マハラジャ算数 asks for nothing beyond the download.

暗算Blitz ships an update daily, マハラジャ算数 every 3 days. Both last shipped on October 3, 2026.

## The numbers

| Metric | 暗算Blitz | マハラジャ算数 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 3 days |
| Size | 54 MB | 27 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Toshihide KAWAI](https://appshunter.io/developer/1598098272) | [Yutaro Takei](https://appshunter.io/developer/1793329405) |

## 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 |


### マハラジャ算数

[App page](https://appshunter.io/ios/app/id6762497944)

**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 マハラジャ算数 free?

マハラジャ算数 is free to download, with no in-app purchases.

### Do 暗算Blitz or マハラジャ算数 have ads?

Both 暗算Blitz and マハラジャ算数 show ads.

### Which is updated more often, 暗算Blitz or マハラジャ算数?

暗算Blitz ships an update daily, and マハラジャ算数 every 3 days. Most recently, 暗算Blitz was updated on October 3, 2026 and マハラジャ算数 on October 3, 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.*