# Mental Math vs Flash Mental Math (Anzan)

The clearest difference is rating: Flash Mental Math (Anzan) at 5.0 against Mental Math's 4.5. Flash Mental Math (Anzan) also leads on review sentiment (100% vs 75%). Mental Math's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence and ads 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. Mental Math asks for nothing beyond the download.

Flash Mental Math (Anzan) holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 75% of Mental Math's written reviews are positive against 100% of Flash Mental Math (Anzan)'s.

Mental Math ships an update every 6 days, Flash Mental Math (Anzan) every 10 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Mental Math | Flash Mental Math (Anzan) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/mental-math-boost-cal-skills/id1572014520/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/flash-mental-math-anzan/id6749636736/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Every 10 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 67 MB | 54 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yudai Kitano](https://appshunter.io/developer/1529380991) | [SIC Company Limited](https://appshunter.io/developer/1800842356) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-boost-cal-skills/id1572014520)

Train your calculation skills with this app by solving math problems against the clock. Customize the time limit and number of questions for a personalized challenge. Review your results to track progress and improve your math abilities.

**Highlights:** Solve math problems against a time limit, Customize time limit and number of problems, Review calculation results, Simple and comfortable user interface, Gaming experience for spare time

**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 Mental Math free?

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, Mental Math or Flash Mental Math (Anzan)?

Flash Mental Math (Anzan) is rated higher. Mental Math averages 4.5 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 6 days, and Flash Mental Math (Anzan) every 10 days. Most recently, Mental Math was updated on November 3, 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.*