# FLASH ANZAN (arithmetic)

> Mental arithmetic training app with customizable speed and difficulty. (iPhone/iPad app by Mako Muraoka Yudai Muraoka.)

- Source: https://appshunter.io/ios/app/flash-anzan-arithmetic/id1282325066 (this page in markdown: same URL + `.md`)
- Developer: [Mako Muraoka Yudai Muraoka](https://appshunter.io/developer/1069915436)
- Category: Education, Productivity
- Price: Free
- Rating: 3.70/5 from 3 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 17 MB
- Languages: American English
- Released: 2017-09-15
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/flash-anzan-arithmetic/id1282325066/reviews.md

## What is FLASH ANZAN (arithmetic)?

-Number of Digits to choose from 1-7
-Flash time (speed) can be changed from 3.0 to 0.1 seconds
-Number of problem to choose from 5-100

## Key features

- Adjustable number of digits (1-7)
- Customizable flash time (0.1-3.0 seconds)
- Selectable number of problems (5-100)
- Focus on mental calculation

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/flash-anzan-arithmetic/id1282325066/reviews.md

### 5/5 — 플래시 암산

*2022-05-21*

이 앱을 사용 하니 옛날 생각 나네요 실력은 좀 죽었지만 재밌어요 ~~

### 3/5 — さらにシンプルを期待して

*2019-11-04, version 1.1*

シンプルで良いアプリです。さらなるシンプルを期待したいです。
課題点
次の問題へ進む時のアクションが6回は多すぎ
問題表示が終わり答えが25のとき
回答欄をクリックー2ー5ー判定
ー改行ーリトライの６アクション(iPad mini)
提案
問題の回答ボタンひとつで良い
つまり、答え合わせは頭の中で行い次の問題に進む
1アクション

### 5/5 — Add 9 digits number

*2018-12-10*

Please add 9 digits number
Thanks

### 5/5 — 使いやすい

*2017-09-15, version 1.0*

シンプルやね

## Frequently asked questions about FLASH ANZAN (arithmetic)

### What is FLASH ANZAN?

FLASH ANZAN is an educational app designed to help users practice mental arithmetic. It allows customization of digit count, flash speed, and the number of problems presented.

### How fast can numbers flash in FLASH ANZAN?

The flash time in FLASH ANZAN can be adjusted from a slower 3.0 seconds down to a rapid 0.1 seconds, allowing users to challenge their processing speed.

### How many digits can be displayed in FLASH ANZAN?

Users can choose to practice with 1 to 7 digits at a time in FLASH ANZAN, catering to different skill levels and training goals.

### What is the maximum number of problems available in FLASH ANZAN?

FLASH ANZAN allows users to set the number of problems for each session, ranging from a minimum of 5 up to a maximum of 100 problems.

### Is FLASH ANZAN available on Android devices?

Based on the provided data, FLASH ANZAN is available for iPhone, iPad, and iPod. Information regarding Android compatibility is not specified.

### How often is FLASH ANZAN updated?

FLASH ANZAN was last updated on October 11, 2017, with version 1.1. The release date was September 15, 2017.

### What is the user rating for FLASH ANZAN?

FLASH ANZAN has a rating of 3.7 stars based on 3 user ratings.

### Does FLASH ANZAN have ads?

No, FLASH ANZAN does not contain advertisements, as indicated by the 'hasAds' flag being false.

## Version history (last 2 releases)

### 1.1 — 2017-10-11

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

sound On/Off

### 1.0 — 2017-09-15

No release notes.

## Apps similar to FLASH ANZAN (arithmetic)

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [N'Back](https://appshunter.io/ios/app/nback/id591320567) | 4.0 (3) | Free | Education |
| [Ninimaths](https://appshunter.io/ios/app/ninimaths/id647989498) | 4.9 (45) | Free | Education |
| [N'Back 10](https://appshunter.io/ios/app/nback-10/id588985886) | 5.0 (1) | $2.99 | Education |
| [total 10 panic](https://appshunter.io/ios/app/total-10-panic/id1624861873) | — | Free | Education |
| [Calculator & abacus training](https://appshunter.io/ios/app/calculator-and-abacus-training/id1092519812) | 1.0 (1) | Free | Education |
| [Soroban66](https://appshunter.io/ios/app/soroban66/id1661734047) | — | $3.99 | Education |

## More apps by Mako Muraoka Yudai Muraoka

- [女子高生vsゾンビ](https://appshunter.io/ios/app/vs/id1086466483)
- [I wanna be a Sushi  ^(・θ・)^](https://appshunter.io/ios/app/i-wanna-be-a-sushi/id1088880391)
- [ねこスイーツ](https://appshunter.io/ios/app/id1121838695)
- [ソフトくん 【 くそげー 】](https://appshunter.io/ios/app/id1130971520)
- [うちゅうけいびアニマルズ](https://appshunter.io/ios/app/id1132847834)
- [ねこをよけてスイーツを食べまくろう！！](https://appshunter.io/ios/app/id1141707609)

All apps by Mako Muraoka Yudai Muraoka: https://appshunter.io/developer/1069915436

---

*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 2026-08-25.*