# Flash Mental Math vs Flash Mental Math (Anzan)

The clearest difference is in-app purchases: Flash Mental Math at none against Flash Mental Math (Anzan)'s 1. Flash Mental Math also leads on ratings volume (18 vs 3). Flash Mental Math (Anzan)'s advantage is update cadence (every 10 days vs every 3 months) and rating (5.0 vs 4.7). On price, ads, device support and iOS requirement 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 Mental Math asks for nothing beyond the download.

Flash Mental Math (Anzan) holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Flash Mental Math has 18 ratings behind it against 3, so its average is the more settled of the two.

Flash Mental Math ships an update every 3 months, Flash Mental Math (Anzan) every 10 days. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Flash Mental Math | Flash Mental Math (Anzan) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (18 ratings)](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736/reviews)** |
| Number of ratings | **18** | 3 |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 14 MB | 54 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [SIC Company Limited](https://appshunter.io/developer/1800842356) |

## What reviewers say

### Flash Mental Math

[App page](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841)

Practice mental arithmetic with various difficulty levels and custom modes. This app serves as a brain training tool to enhance calculation skills.

**Highlights:** Mental arithmetic practice, Easy, normal, and difficult modes, Customizable modes, Brain training, Calculation skill improvement

**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 Mental Math free?

Flash Mental Math 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 Mental Math or Flash Mental Math (Anzan)?

Flash Mental Math (Anzan) is rated higher. Flash Mental Math averages 4.7 out of 5 from 18 ratings, while Flash Mental Math (Anzan) averages 5.0 from 3 ratings.

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

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

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

Flash Mental Math ships an update every 3 months, and Flash Mental Math (Anzan) every 10 days. Most recently, Flash Mental Math was updated on September 29, 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.*