# Long Subtraction vs GridMath

The clearest difference is price: GridMath at Free against Long Subtraction's $0.99. Long Subtraction's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

GridMath is free to download; Long Subtraction costs $0.99 up front. GridMath sells 3 one-off in-app purchases. Long Subtraction asks for nothing beyond the download.

## The numbers

| Metric | Long Subtraction | GridMath |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Size | 1 MB | 34 MB |
| Requires iOS | 14.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [H Valeur](https://appshunter.io/developer/621824042) | [Wojciech Szczurek](https://appshunter.io/developer/1454681479) |

## What reviewers say

### Long Subtraction

[App page](https://appshunter.io/ios/app/long-subtraction/id6469645846)

**Features:** macOS Compatibility

**In-app purchases:** none


### GridMath

[App page](https://appshunter.io/ios/app/gridmath/id6754144816)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Tokens | $2.99 | one-time |
| 50 Tokens | $4.99 | one-time |
| 100 Tokens | $5.99 | one-time |


## Frequently asked questions

### Is Long Subtraction free?

Long Subtraction costs $0.99, with no in-app purchases.

### Is GridMath free?

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

### Do Long Subtraction or GridMath have ads?

Neither Long Subtraction nor GridMath shows ads.

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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.*