# Mental Math vs Flash Mental Math (Anzan)

The clearest difference is review sentiment: Flash Mental Math (Anzan) at 100% against Mental Math's 22%. Flash Mental Math (Anzan) also leads on rating (5.0 vs 4.3) and device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Mental Math sells 3 in-app purchases, starting at $2.99 per month 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.

Flash Mental Math (Anzan) holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 22% of Mental Math's written reviews are positive against 100% of Flash Mental Math (Anzan)'s.

Mental Math ships an update every 8 days, Flash Mental Math (Anzan) every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Mental Math | Flash Mental Math (Anzan) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/mental-math-soroban-abacus/id6476421167/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 22.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 8 days** | Every 10 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 56 MB | 54 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI HASHIMOTO](https://appshunter.io/developer/1689527181) | [SIC Company Limited](https://appshunter.io/developer/1800842356) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-soroban-abacus/id6476421167)

Sharpen your mental math skills with this engaging app focused on addition. Customize card numbers and timing intervals for a personalized learning experience. Track your progress with visually stimulating graphics, suitable for all ages.

**Highlights:** Customizable card numbers, Adjustable timing intervals, Focus on addition, Progress tracking, Engaging visuals, User-friendly interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月間プラン | $2.99 | per month |
| 年間プラン | $19.99 | per year |
| Lifetime Premium | $39.99 | 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 Mental Math free?

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

Flash Mental Math (Anzan) is rated higher. Mental Math averages 4.3 out of 5 from 4 ratings, while Flash Mental Math (Anzan) averages 5.0 from 3 ratings.

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

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

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

Mental Math ships an update every 8 days, and Flash Mental Math (Anzan) every 10 days. Most recently, Mental Math was updated on October 30, 2026 and Flash Mental Math (Anzan) on October 31, 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.*