# 9x9カード（法人・教育機関向け） vs Smart Math Drills

The clearest difference is price: Smart Math Drills at Free against 9x9カード（法人・教育機関向け）'s $1.99. Smart Math Drills also leads on update cadence (every 2 days vs every 25 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Smart Math Drills is free to download; 9x9カード（法人・教育機関向け） costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

9x9カード（法人・教育機関向け） ships an update every 25 months, Smart Math Drills every 2 days. The most recent releases landed on September 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 9x9カード（法人・教育機関向け） | Smart Math Drills |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 2 days** |
| Size | 13 MB | 70 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) | [Satoru Morita](https://appshunter.io/developer/1623323756) |

## What reviewers say

### 9x9カード（法人・教育機関向け）

[App page](https://appshunter.io/ios/app/9x9/id1480503846)

**In-app purchases:** none


### Smart Math Drills

[App page](https://appshunter.io/ios/app/smart-math-drills/id6478051833)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 9x9カード（法人・教育機関向け） free?

9x9カード（法人・教育機関向け） costs $1.99, with no in-app purchases.

### Is Smart Math Drills free?

Smart Math Drills is free to download, with no in-app purchases.

### Do 9x9カード（法人・教育機関向け） or Smart Math Drills have ads?

Neither 9x9カード（法人・教育機関向け） nor Smart Math Drills shows ads.

### Which is updated more often, 9x9カード（法人・教育機関向け） or Smart Math Drills?

9x9カード（法人・教育機関向け） ships an update every 25 months, and Smart Math Drills every 2 days. Most recently, 9x9カード（法人・教育機関向け） was updated on September 18, 2026 and Smart Math Drills on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*