# Flash mental calculation vs FLASH ANZAN (arithmetic)

The clearest difference is rating: Flash mental calculation at 5.0 against FLASH ANZAN (arithmetic)'s 3.7. Flash mental calculation also leads on review sentiment (100% vs 75%). 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 calculation sells 1 one-off in-app purchase. FLASH ANZAN (arithmetic) asks for nothing beyond the download.

Flash mental calculation holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews point the same way: 100% of Flash mental calculation's written reviews are positive against 75% of FLASH ANZAN (arithmetic)'s.

Flash mental calculation ships an update every 5 months, FLASH ANZAN (arithmetic) monthly. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Flash mental calculation | FLASH ANZAN (arithmetic) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/flash-mental-calculation/id1224937523/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/flash-anzan-arithmetic/id1282325066/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 17 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kenji kiuchi](https://appshunter.io/developer/553473005) | [Mako Muraoka Yudai Muraoka](https://appshunter.io/developer/1069915436) |

## What reviewers say

### Flash mental calculation

[App page](https://appshunter.io/ios/app/flash-mental-calculation/id1224937523)

Practice mental arithmetic with this educational app. Review your calculation process, and easily re-challenge mistaken problems from your past logs. Upgrade to save more calculation history.

**Highlights:** Practice flash mental arithmetic, Review calculation process, Rechallenge mistaken problems, Save past calculation logs, Log history saved after purchase

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

**In-app purchases (1)**

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


### 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


## Frequently asked questions

### Is Flash mental calculation free?

Flash mental calculation is free to download, with in-app purchases available.

### Is FLASH ANZAN (arithmetic) free?

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

### Which has better reviews, Flash mental calculation or FLASH ANZAN (arithmetic)?

Flash mental calculation is rated higher. Flash mental calculation averages 5.0 out of 5 from 2 ratings, while FLASH ANZAN (arithmetic) averages 3.7 from 3 ratings.

### Do Flash mental calculation or FLASH ANZAN (arithmetic) have ads?

Flash mental calculation shows ads; FLASH ANZAN (arithmetic) does not.

### Which is updated more often, Flash mental calculation or FLASH ANZAN (arithmetic)?

Flash mental calculation ships an update every 5 months, and FLASH ANZAN (arithmetic) monthly. Most recently, Flash mental calculation was updated on October 17, 2026 and FLASH ANZAN (arithmetic) on October 13, 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.*