# Rubicon vs xMath

The clearest difference is ads: xMath at none against Rubicon's shown. Rubicon's advantage is update cadence (every 2 days vs every 4 days) and iOS requirement (13.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Rubicon sells 7 one-off in-app purchases and xMath sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Rubicon ships an update every 2 days, xMath every 4 days. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Rubicon | xMath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 698 MB | 8 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [OneTwoPlay B.V.](https://appshunter.io/developer/1707024410) | [Appzone Dijital Hizmetler Anonim Sirketi](https://appshunter.io/developer/1844869089) |

## What reviewers say

### Rubicon

[App page](https://appshunter.io/ios/app/rubicon-math-games/id6743382440)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Gems | $4.99 | one-time |
| Battle Pass Premium | $4.99 | one-time |
| 1000 Gems | $9.99 | one-time |
| 1500 Gems | $14.99 | one-time |
| 2000 Gems | $19.99 | one-time |
| 2500 Gems | $24.99 | one-time |
| 3000 Gems | $29.99 | one-time |


### xMath

[App page](https://appshunter.io/ios/app/xmath-ai-math-problem-solver/id6775264691)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Math Weekly Trial | $9.99 | per 7 days |
| AI Math Monthly | $17.99 | per month |
| AI Math Yearly | $44.99 | per year |


## Frequently asked questions

### Is Rubicon free?

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

### Is xMath free?

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

### Do Rubicon or xMath have ads?

Rubicon shows ads; xMath does not.

### Which is updated more often, Rubicon or xMath?

Rubicon ships an update every 2 days, and xMath every 4 days. Most recently, Rubicon was updated on October 4, 2026 and xMath on October 17, 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.*