# 9x9 Cards — Multiplication table

> Educational app for learning multiplication tables. (iPhone/iPad app by Koji Iida.)

- Source: https://appshunter.io/ios/app/9x9-cards/id1254925679 (this page in markdown: same URL + `.md`)
- Developer: [Koji Iida](https://appshunter.io/developer/955305523)
- Category: Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.3 · 22 MB
- Languages: American English, Japanese
- Released: 2017-07-24
- Data updated: 2026-06-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/9x9-cards/id1254925679/reviews.md

## What is 9x9 Cards?

This is the app to study the multiplication.

I developed this app for my 8-year-old daughter.

## Key features

- Multiplication table study
- Designed for children
- Simple learning approach
- Focus on math facts

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/9x9-cards/id1254925679/reviews.md

### 3/5 — 使いやすい

*2021-02-10, version 1.0*

単語帳みたいに使えて便利だが6×7の答えがにじゅーしになってるのが気になります。

### 2/5 — フル画面広告が邪魔

*2019-10-26, version 1.0*

段を変えるたびにフル画面広告が出るので、時間がもったいない

## Frequently asked questions about 9x9 Cards

### What is the main purpose of 9x9 Cards?

The main purpose of 9x9 Cards is to help children study and learn multiplication tables. It provides a focused environment for mastering math facts.

### Who developed 9x9 Cards and why?

9x9 Cards was developed by Koji Iida for his 8-year-old daughter. The app was created to aid in her learning of multiplication.

### What age is 9x9 Cards suitable for?

The app has an age rating of 4+, making it suitable for young children who are beginning to learn their multiplication tables.

### On which devices can I use 9x9 Cards?

9x9 Cards is available for iOS devices, including iPhone, iPad, and iPod touch.

### How often is 9x9 Cards updated?

The app was last updated on July 24, 2017, with version 1.0. There have been no updates since its initial release.

### What is the user rating for 9x9 Cards?

9x9 Cards has a perfect rating of 5.0 stars based on one review, indicating a highly positive user experience.

### Does 9x9 Cards have ads?

No, 9x9 Cards does not contain advertisements. The app is ad-free, providing an uninterrupted learning experience.

### Are there any in-app purchases in 9x9 Cards?

Yes, 9x9 Cards does offer in-app purchases. However, the core functionality of learning multiplication tables is available for free.

## Version history (last 1 release)

### 1.0 — 2017-07-24

This app has been updated by Apple to display the Apple Watch app icon.

## Apps similar to 9x9 Cards

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [The New School App](https://appshunter.io/ios/app/the-new-school-app/id1474388180) | 5.0 (3) | Free | Education |
| [Solis USA States and Capitals](https://appshunter.io/ios/app/solis-usa-states-and-capitals/id1479512480) | — | Free | Education |
| [영 단어즙](https://appshunter.io/ios/app/id1480979760) | 5.0 (1) | Free | Education |
| [Victoria International Schools](https://appshunter.io/ios/app/victoria-international-schools/id1480979200) | 5.0 (1) | Free | Education |
| [ANZAC Correspondent](https://appshunter.io/ios/app/anzac-correspondent/id1469171280) | — | Free | Education |
| [CBC Highlands](https://appshunter.io/ios/app/cbc-highlands/id1475147920) | 4.3 (6) | Free | Education |

## More apps by Koji Iida

- [Dilution Calculator](https://appshunter.io/ios/app/dilution-calculator/id955305524)
- [Math Cards - Addition & Subtraction](https://appshunter.io/ios/app/math-cards-addition-and-subtraction/id1138237758)

All apps by Koji Iida: https://appshunter.io/developer/955305523

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*