# 9x9カード（法人・教育機関向け） vs 九九

The clearest difference is price: 九九 at Free against 9x9カード（法人・教育機関向け）'s $1.99. 九九 also leads on update cadence (every 5 months vs every 25 months). 9x9カード（法人・教育機関向け）'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

九九 is free to download; 9x9カード（法人・教育機関向け） costs $1.99 up front. 九九 sells 1 one-off in-app purchase. 9x9カード（法人・教育機関向け） asks for nothing beyond the download.

9x9カード（法人・教育機関向け） ships an update every 25 months, 九九 every 5 months. The most recent releases landed on September 18, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | 9x9カード（法人・教育機関向け） | 九九 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/easy/id1611285814/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 25 months | **Every 5 months** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 109 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) | [Sumie Watanabe](https://appshunter.io/developer/1349237972) |

## 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


### 九九

[App page](https://appshunter.io/ios/app/easy/id1611285814)

This app offers a comprehensive multiplication and word problem learning experience with randomized practice questions. It includes a review mode for incorrect answers and is free to use with optional ad removal via in-app purchase.

**Highlights:** Randomized multiplication problems, Word problem practice, Review mode for incorrect answers, Calendar feature, Name and icon display for submissions

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 九九アプリバナー広告非表示 | $1.99 | one-time |


## 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 九九 free?

九九 is free to download, with in-app purchases available.

### Do 9x9カード（法人・教育機関向け） or 九九 have ads?

九九 shows ads; 9x9カード（法人・教育機関向け） does not.

### Which is updated more often, 9x9カード（法人・教育機関向け） or 九九?

9x9カード（法人・教育機関向け） ships an update every 25 months, and 九九 every 5 months. Most recently, 9x9カード（法人・教育機関向け） was updated on September 18, 2026 and 九九 on June 5, 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.*