# Math Magicians vs ブロックグリッド 81 (BlockGrid 81)

The clearest difference is in-app purchases: ブロックグリッド 81 (BlockGrid 81) at none against Math Magicians's 4. Math Magicians's advantage is ads (none vs shown) and update cadence (every 6 days vs every 8 months). On price and device support there is nothing between them.

Both are free to download. Math Magicians sells 4 one-off in-app purchases. ブロックグリッド 81 (BlockGrid 81) asks for nothing beyond the download.

Math Magicians ships an update every 6 days, ブロックグリッド 81 (BlockGrid 81) every 8 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Math Magicians | ブロックグリッド 81 (BlockGrid 81) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 8 months |
| Size | 167 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Satoshi Morikawa](https://appshunter.io/developer/1731368317) | [IBUKI YOSHIDA](https://appshunter.io/developer/1856209051) |

## What reviewers say

### Math Magicians

[App page](https://appshunter.io/ios/app/math-magicians-math-card-game/id6478015574)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ランダムモード　アンロック | $1.99 | one-time |
| ハードモード　アンロック | $4.99 | one-time |
| ノーマルモード　アンロック | $5.99 | one-time |
| 全ステージ・モード解放 | $11.99 | one-time |


### ブロックグリッド 81 (BlockGrid 81)

[App page](https://appshunter.io/ios/app/81-blockgrid-81/id6756016996)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Magicians free?

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

### Is ブロックグリッド 81 (BlockGrid 81) free?

ブロックグリッド 81 (BlockGrid 81) is free to download, with no in-app purchases.

### Do Math Magicians or ブロックグリッド 81 (BlockGrid 81) have ads?

ブロックグリッド 81 (BlockGrid 81) shows ads; Math Magicians does not.

### Which is updated more often, Math Magicians or ブロックグリッド 81 (BlockGrid 81)?

Math Magicians ships an update every 6 days, and ブロックグリッド 81 (BlockGrid 81) every 8 months. Most recently, Math Magicians was updated on October 27, 2026 and ブロックグリッド 81 (BlockGrid 81) on October 28, 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.*