# Multiplication 99 vs 9958 教教我吧!

The clearest difference is price: Multiplication 99 at Free against 9958 教教我吧!'s $999.99. Multiplication 99 also leads on iOS requirement (12.0 vs 15.0). 9958 教教我吧!'s advantage is ads (none vs shown) and update cadence (every 2 months vs every 31 months). On in-app purchases and device support there is nothing between them.

Multiplication 99 is free to download; 9958 教教我吧! costs $999.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Multiplication 99 ships an update every 31 months, 9958 教教我吧! every 2 months. The most recent releases landed on October 29, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Multiplication 99 | 9958 教教我吧! |
| --- | --- | --- |
| Price | **Free** | $999.99 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 31 months | **Every 2 months** |
| Size | 13 MB | 140 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chi-Cheng Liao](https://appshunter.io/developer/1053803113) | [力豆文創股份有限公司](https://appshunter.io/developer/1448327672) |

## What reviewers say

### Multiplication 99

[App page](https://appshunter.io/ios/app/multiplication-99/id1173794705)

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

**In-app purchases:** none


### 9958 教教我吧!

[App page](https://appshunter.io/ios/app/9958/id6446185450)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Multiplication 99 free?

Multiplication 99 is free to download, with no in-app purchases.

### Is 9958 教教我吧! free?

9958 教教我吧! costs $999.99, with no in-app purchases.

### Do Multiplication 99 or 9958 教教我吧! have ads?

Multiplication 99 shows ads; 9958 教教我吧! does not.

### Which is updated more often, Multiplication 99 or 9958 教教我吧!?

Multiplication 99 ships an update every 31 months, and 9958 教教我吧! every 2 months. Most recently, Multiplication 99 was updated on October 29, 2026 and 9958 教教我吧! on November 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.*