# 正の数・負の数トランプゲーム vs GridCalculation

The clearest difference is in-app purchases: GridCalculation at none against 正の数・負の数トランプゲーム's 4. 正の数・負の数トランプゲーム's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.6). On price, update cadence and ads there is nothing between them.

Both are free to download. 正の数・負の数トランプゲーム sells 4 one-off in-app purchases. GridCalculation asks for nothing beyond the download.

正の数・負の数トランプゲーム ships an update every 6 days, GridCalculation weekly. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 正の数・負の数トランプゲーム | GridCalculation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Weekly |
| Size | 206 MB | 16 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [blueskymathapp](https://appshunter.io/developer/1572394588) | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) |

## What reviewers say

### 正の数・負の数トランプゲーム

[App page](https://appshunter.io/ios/app/id1572394586)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| お菓子 | $0.29 | one-time |
| カレーライス | $3.99 | one-time |
| ステーキ | $17.99 | one-time |
| 栄一さん | $59.99 | one-time |


### GridCalculation

[App page](https://appshunter.io/ios/app/gridcalculation/id6745461475)

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

**In-app purchases:** none


## Frequently asked questions

### Is 正の数・負の数トランプゲーム free?

正の数・負の数トランプゲーム is free to download, with in-app purchases available.

### Is GridCalculation free?

GridCalculation is free to download, with no in-app purchases.

### Do 正の数・負の数トランプゲーム or GridCalculation have ads?

Both 正の数・負の数トランプゲーム and GridCalculation show ads.

### Which is updated more often, 正の数・負の数トランプゲーム or GridCalculation?

正の数・負の数トランプゲーム ships an update every 6 days, and GridCalculation weekly. Most recently, 正の数・負の数トランプゲーム was updated on September 10, 2026 and GridCalculation on September 21, 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.*