# Flash mental calculation vs Flash Mental Math (Anzan)

The clearest difference is update cadence: Flash Mental Math (Anzan) at weekly against Flash mental calculation's every 5 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Flash mental calculation sells 1 one-off in-app purchase and Flash Mental Math (Anzan) sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Flash mental calculation against 5.0 for Flash Mental Math (Anzan). Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Flash mental calculation ships an update every 5 months, Flash Mental Math (Anzan) weekly. The most recent releases landed on August 19, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Flash mental calculation | Flash Mental Math (Anzan) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/flash-mental-calculation/id1224937523/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 51 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kenji kiuchi](https://appshunter.io/developer/553473005) | [SIC Company Limited](https://appshunter.io/developer/1800842356) |

## 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 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 mental calculation free?

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

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

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

### Which has better reviews, Flash mental calculation or Flash Mental Math (Anzan)?

Flash mental calculation and Flash Mental Math (Anzan) are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do Flash mental calculation or Flash Mental Math (Anzan) have ads?

Both Flash mental calculation and Flash Mental Math (Anzan) show ads.

### Which is updated more often, Flash mental calculation or Flash Mental Math (Anzan)?

Flash mental calculation ships an update every 5 months, and Flash Mental Math (Anzan) weekly. Most recently, Flash mental calculation was updated on August 19, 2026 and Flash Mental Math (Anzan) on September 5, 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.*