# FLASH ANZAN (arithmetic) vs Flash Mental Math (Anzan)

The clearest difference is rating: Flash Mental Math (Anzan) at 5.0 against FLASH ANZAN (arithmetic)'s 3.7. Flash Mental Math (Anzan) also leads on update cadence (every 10 days vs monthly). FLASH ANZAN (arithmetic)'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. Flash Mental Math (Anzan) sells 1 in-app purchase, starting at $0.99 per month. FLASH ANZAN (arithmetic) asks for nothing beyond the download.

Flash Mental Math (Anzan) holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

FLASH ANZAN (arithmetic) ships an update monthly, Flash Mental Math (Anzan) every 10 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | FLASH ANZAN (arithmetic) | Flash Mental Math (Anzan) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/flash-anzan-arithmetic/id1282325066/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 54 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mako Muraoka Yudai Muraoka](https://appshunter.io/developer/1069915436) | [SIC Company Limited](https://appshunter.io/developer/1800842356) |

## What reviewers say

### FLASH ANZAN (arithmetic)

[App page](https://appshunter.io/ios/app/flash-anzan-arithmetic/id1282325066)

Practice mental arithmetic with adjustable settings for digit count, flash speed, and problem quantity. Designed to enhance calculation skills through timed exercises.

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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Flash Mental Math (Anzan)

[App page](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736)

This app helps users of all ages improve their mental math and calculation speed. Numbers flash on screen briefly, training quick thinking and concentration. It's ideal for children preparing for abacus certification, students needing math test prep, or adults seeking brain training.

**Highlights:** Flash number display for quick thinking, Adjustable difficulty levels, Global and classroom rankings, No account registration required, Supports multiple languages, Intuitive interface for children

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |


## Frequently asked questions

### Is FLASH ANZAN (arithmetic) free?

FLASH ANZAN (arithmetic) is free to download, with no in-app purchases.

### Is Flash Mental Math (Anzan) free?

Flash Mental Math (Anzan) is free to download, with in-app purchases available.

### Which has better reviews, FLASH ANZAN (arithmetic) or Flash Mental Math (Anzan)?

Flash Mental Math (Anzan) is rated higher. FLASH ANZAN (arithmetic) averages 3.7 out of 5 from 3 ratings, while Flash Mental Math (Anzan) averages 5.0 from 3 ratings.

### Do FLASH ANZAN (arithmetic) or Flash Mental Math (Anzan) have ads?

Flash Mental Math (Anzan) shows ads; FLASH ANZAN (arithmetic) does not.

### Which is updated more often, FLASH ANZAN (arithmetic) or Flash Mental Math (Anzan)?

FLASH ANZAN (arithmetic) ships an update monthly, and Flash Mental Math (Anzan) every 10 days. Most recently, FLASH ANZAN (arithmetic) was updated on October 13, 2026 and Flash Mental Math (Anzan) on October 7, 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.*