# Flash mental calculation

> Educational app for practicing and reviewing mental arithmetic calculations. (iPhone/iPad app by kenji kiuchi.)

- Source: https://appshunter.io/ios/app/flash-mental-calculation/id1224937523 (this page in markdown: same URL + `.md`)
- Developer: [kenji kiuchi](https://appshunter.io/developer/553473005)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 11 MB
- Languages: American English, Japanese
- Released: 2017-04-14
- Data updated: 2026-08-19
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/flash-mental-calculation/id1224937523/reviews.md

## What is Flash mental calculation?

This app that you can practice flash mental arithmetic.
You can review the calculation process by tapping the confirmation button after calculation.
In addition, since the question which was made is saved in the past log, you can rechallenge the mistaken problem later.
The past logs are saved for 10 questions before purchase, and 150 questions can be saved after purchase.

■ Past log
Challenge mode, practice mode questions and results are automatically saved.
Touch the challenge button to re-challenge the question.
The past logs are saved for 10 questions before purchase and 150 questions are stored after purchase.

## Key features

- Practice flash mental arithmetic
- Review calculation process
- Rechallenge mistaken problems
- Save past calculation logs
- Log history saved after purchase

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove AD & All function Release. | $9.99 | one-time |


## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/flash-mental-calculation/id1224937523/reviews.md

### 5/5 — メモリー機能とても使いやすいです！

*2024-09-19, version 2.9*

他の級に挑戦した後でも細かく設定し直す必要が無くなり、とても便利になりました。学習者にとって痒いところに手が届く機能です。
アップデートありがとうございます！

### 5/5 — The best one of these

*2024-01-02, version 2.8*

The only app I could find that does the job correctly.

### 5/5 — すごく楽しいです。

*2022-02-10*

ボケ防止にとても最適で、かけ算、わり算の要素も追加して欲しいです。

### 4/5 — いーね

*2020-10-19*

暇つぶしにいい

### 5/5 — The Best

*2020-10-13, version 2.6*

This is the most complete flash anzan app that I’ve used so far. Try it.

### 5/5 — Great

*2020-04-09, version 2.6*

Graet

### 5/5 — Add 9 digits number

*2019-04-07*

Please,add 9 digits number

## Frequently asked questions about Flash mental calculation

### How does Flash mental calculation help users learn?

Flash mental calculation allows users to practice mental arithmetic and review their calculation process. It also saves past questions, enabling users to re-challenge problems they previously got wrong, reinforcing learning.

### What is the past log feature in Flash mental calculation?

The past log feature automatically saves your calculation questions and results from challenge and practice modes. You can tap the challenge button to re-attempt these saved problems.

### How many past logs can Flash mental calculation save?

Before purchase, the app saves 10 past questions. After purchasing, the capacity increases to save up to 150 questions, allowing for more extensive review.

### Is Flash mental calculation suitable for children?

Yes, Flash mental calculation has an age rating of 4+, making it suitable for young learners to develop foundational math skills.

### What devices is Flash mental calculation available on?

Flash mental calculation is available on iPhones, iPads, and iPods, offering a consistent experience across Apple devices.

### How often is Flash mental calculation updated?

The app was last updated on June 10, 2025, indicating active development and potential for new features or improvements.

### Does Flash mental calculation have ads?

Yes, Flash mental calculation contains advertisements. These ads are present in the free version of the application.

### What is the user sentiment for Flash mental calculation?

Users have rated Flash mental calculation highly, with an average of 5.0 stars from 2 ratings, suggesting a positive user experience.

## Version history (last 5 releases)

### 2.11 — 2025-06-10

bug fix.

### 2.10 — 2025-04-13

bug fix.

### 2.9 — 2024-09-18

bug fix.

### 2.8 — 2021-07-26

bug fix.

### 2.7 — 2020-10-29

bug fix.

## Apps similar to Flash mental calculation

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Flash Mental Math (Anzan)](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736) | 5.0 (3) | Free | Education |
| [Abacus Lesson - Division -](https://appshunter.io/ios/app/abacus-lesson-division/id1593317741) | 5.0 (8) | Free | Education |
| [Abacus Mental Math Training](https://appshunter.io/ios/app/abacus-mental-math-training/id6449295111) | 4.1 (29) | Free | Education |
| [Abacus Lesson -Multiplication-](https://appshunter.io/ios/app/abacus-lesson-multiplication/id1582635868) | 5.0 (14) | Free | Education |
| [Anzan Expert](https://appshunter.io/ios/app/anzan-expert/id1534494364) | 4.7 (6) | Free | Education |
| [Flash Mental Math - Simple](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841) | 4.7 (18) | Free | Education |

## More apps by kenji kiuchi

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- [新幹線駅名クイズ -日本地図で覚える鉄道問題-](https://appshunter.io/ios/app/id1097402558)
- [Learn National Flags Quiz](https://appshunter.io/ios/app/learn-national-flags-quiz/id1133830526)

All apps by kenji kiuchi: https://appshunter.io/developer/553473005

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*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 2026-08-19.*