# Defence Xam Master vs Math Surface

The clearest difference is in-app purchases: Math Surface at none against Defence Xam Master's 10. Defence Xam Master's advantage is ads (none vs shown) and iOS requirement (15.5 vs 26.2). On price and device support there is nothing between them.

Both are free to download. Defence Xam Master sells 10 one-off in-app purchases. Math Surface asks for nothing beyond the download.

## The numbers

| Metric | Defence Xam Master | Math Surface |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Size | 146 MB | 10 MB |
| Requires iOS | **15.5** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Online Learning](https://appshunter.io/developer/1790866777) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### Defence Xam Master

[App page](https://appshunter.io/ios/app/defence-xam-master/id6755429188)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - AV | $34.99 | one-time |
| Package - AY | $39.99 | one-time |
| Package - BA | $39.99 | one-time |
| Package - BB | $39.99 | one-time |
| Package - BD | $39.99 | one-time |
| Package - BC | $39.99 | one-time |
| Package - BE | $44.99 | one-time |
| Package - BF | $49.99 | one-time |
| Package - BG | $49.99 | one-time |
| Package - BH | $49.99 | one-time |


### Math Surface

[App page](https://appshunter.io/ios/app/math-surface/id6774883910)

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

**In-app purchases:** none


## Frequently asked questions

### Is Defence Xam Master free?

Defence Xam Master is free to download, with in-app purchases available.

### Is Math Surface free?

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

### Do Defence Xam Master or Math Surface have ads?

Math Surface shows ads; Defence Xam Master 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.*