# Plus Minus Math SD vs Busy Multiplication

The clearest difference is update cadence: Busy Multiplication at every 5 weeks against Plus Minus Math SD's every 18 months. Busy Multiplication also leads on iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Plus Minus Math SD ships an update every 18 months, Busy Multiplication every 5 weeks. The most recent releases landed on March 4, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Plus Minus Math SD | Busy Multiplication |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (8 ratings)](https://appshunter.io/ios/app/busy-multiplication/id1078052649/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 18 months | **Every 5 weeks** |
| Monetization | — | Ad-supported |
| Size | 24 MB | 148 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andela ICT](https://appshunter.io/developer/342734534) | [teruhisa nagato](https://appshunter.io/developer/1034153997) |

## What reviewers say

### Plus Minus Math SD

[App page](https://appshunter.io/ios/app/plus-minus-math-sd/id1031009964)

**Features:** macOS Compatibility

**In-app purchases:** none


### Busy Multiplication

[App page](https://appshunter.io/ios/app/busy-multiplication/id1078052649)

Practice multiplication facts with this engaging game. Choose correct answers from multiple options to solve problems presented on a blackboard. Features two modes: endless training and a timed challenge to test speed and accuracy.

**Highlights:** Multiplication problem solving, Select correct answers from choices, Repeat Training Mode (endless), Challenge Mode (timed), Boosts for consecutive correct answers, Online leaderboards

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Plus Minus Math SD free?

Plus Minus Math SD is free to download, with no in-app purchases.

### Is Busy Multiplication free?

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

### Do Plus Minus Math SD or Busy Multiplication have ads?

Both Plus Minus Math SD and Busy Multiplication show ads.

### Which is updated more often, Plus Minus Math SD or Busy Multiplication?

Plus Minus Math SD ships an update every 18 months, and Busy Multiplication every 5 weeks. Most recently, Plus Minus Math SD was updated on March 4, 2026 and Busy Multiplication on August 13, 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.*