# Mental Math Ninja vs Multiplication Bug

The clearest difference is in-app purchases: Multiplication Bug at none against Mental Math Ninja's 1. Mental Math Ninja's advantage is update cadence (every 2 weeks vs every 3 months) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

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

Mental Math Ninja ships an update every 2 weeks, Multiplication Bug every 3 months. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Mental Math Ninja | Multiplication Bug |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Size | 17 MB | 34 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sphulling Technologies](https://appshunter.io/developer/1540194995) | [Sviatlana Shandrokha](https://appshunter.io/developer/1880822012) |

## What reviewers say

### 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 |


### Multiplication Bug

[App page](https://appshunter.io/ios/app/multiplication-bug-kids/id6759811516)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mental Math Ninja free?

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

### Is Multiplication Bug free?

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

### Do Mental Math Ninja or Multiplication Bug have ads?

Neither Mental Math Ninja nor Multiplication Bug shows ads.

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

Mental Math Ninja ships an update every 2 weeks, and Multiplication Bug every 3 months. Most recently, Mental Math Ninja was updated on October 4, 2026 and Multiplication Bug on October 7, 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.*