# Subtraction Math Master 2 vs SmartySpace

The clearest difference is in-app purchases: SmartySpace at none against Subtraction Math Master 2's 1. Subtraction Math Master 2's advantage is iOS requirement (8.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. Subtraction Math Master 2 sells 1 one-off in-app purchase. SmartySpace asks for nothing beyond the download.

## The numbers

| Metric | Subtraction Math Master 2 | SmartySpace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/subtraction-math-master-2/id806133567/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 34 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 166 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peter Li](https://appshunter.io/developer/424298074) | [MedMind Technology HK](https://appshunter.io/developer/1487355613) |

## What reviewers say

### Subtraction Math Master 2

[App page](https://appshunter.io/ios/app/subtraction-math-master-2/id806133567)

This game challenges players to improve their subtraction speed and mental math skills. It features a "LEVEL UP" system that increases difficulty with correct answers and includes leaderboards and achievements for competitive play.

**Highlights:** 2-minute subtraction games, LEVEL UP difficulty system, Leaderboards and achievements, Intuitive user interface, Share results globally

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| REMOVE ADS (Subtraction 2) | $0.99 | one-time |


### SmartySpace

[App page](https://appshunter.io/ios/app/smartyspace/id6464468578)

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

**In-app purchases:** none


## Frequently asked questions

### Is Subtraction Math Master 2 free?

Subtraction Math Master 2 is free to download, with in-app purchases available.

### Is SmartySpace free?

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

### Do Subtraction Math Master 2 or SmartySpace have ads?

Neither Subtraction Math Master 2 nor SmartySpace 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.*