# SoroRoom vs Mental Math Ninja

The clearest difference is in-app purchases: SoroRoom at none against Mental Math Ninja's 1. Mental Math Ninja's advantage is update cadence (every 2 weeks vs every 2 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Mental Math Ninja sells 1 one-off in-app purchase. SoroRoom asks for nothing beyond the download.

SoroRoom ships an update every 2 months, Mental Math Ninja every 2 weeks. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SoroRoom | Mental Math Ninja |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 210 MB | 17 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SoroTouch Co., Ltd.](https://appshunter.io/developer/927820962) | [Sphulling Technologies](https://appshunter.io/developer/1540194995) |

## What reviewers say

### SoroRoom

[App page](https://appshunter.io/ios/app/sororoom/id1239288027)

**In-app purchases:** none


### Mental Math Ninja

[App page](https://appshunter.io/ios/app/mental-math-ninja/id1441928183)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Do More Math | $0.99 | one-time |


## Frequently asked questions

### Is SoroRoom free?

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

### Is Mental Math Ninja free?

Mental Math Ninja is free to download, with in-app purchases available.

### Do SoroRoom or Mental Math Ninja have ads?

Neither SoroRoom nor Mental Math Ninja shows ads.

### Which is updated more often, SoroRoom or Mental Math Ninja?

SoroRoom ships an update every 2 months, and Mental Math Ninja every 2 weeks. Most recently, SoroRoom was updated on October 5, 2026 and Mental Math Ninja on October 4, 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.*