# Subtraction App vs 拇指战机

The clearest difference is in-app purchases: 拇指战机 at none against Subtraction App's 1. 拇指战机 also leads on ads (none vs shown) and iOS requirement (9.0 vs 14.0). On price and device support there is nothing between them.

Both are free to download. Subtraction App sells 1 in-app purchase, starting at $1.99 per month. 拇指战机 asks for nothing beyond the download.

## The numbers

| Metric | Subtraction App | 拇指战机 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Size | 26 MB | 60 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Foodmenu.world Inc.](https://appshunter.io/developer/1438351063) | [Shenzhen Pixel Interactive Entertainment Co.,Ltd](https://appshunter.io/developer/1713318475) |

## What reviewers say

### Subtraction App

[App page](https://appshunter.io/ios/app/subtraction-app/id1622934481)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |


### 拇指战机

[App page](https://appshunter.io/ios/app/id6470280545)

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

**In-app purchases:** none


## Frequently asked questions

### Is Subtraction App free?

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

### Is 拇指战机 free?

拇指战机 is free to download, with no in-app purchases.

### Do Subtraction App or 拇指战机 have ads?

Subtraction App shows ads; 拇指战机 does not.

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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.*