# FLASH ANZAN (arithmetic) vs Mental Math

The clearest difference is review sentiment: FLASH ANZAN (arithmetic) at 75% against Mental Math's 22%. FLASH ANZAN (arithmetic) also leads on in-app purchases (none vs 3) and ads (none vs shown). Mental Math's advantage is rating (4.3 vs 3.7) and update cadence (every 8 days vs monthly). On price and ratings volume there is nothing between them.

Both are free to download. Mental Math sells 3 in-app purchases, starting at $2.99 per month. FLASH ANZAN (arithmetic) asks for nothing beyond the download.

Mental Math holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews complicate that: 75% of FLASH ANZAN (arithmetic)'s written reviews are positive against 22% of Mental Math's, so the app with the better star average is not the one people write more warmly about.

FLASH ANZAN (arithmetic) ships an update monthly, Mental Math every 8 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FLASH ANZAN (arithmetic) | Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/flash-anzan-arithmetic/id1282325066/reviews) | **[4.3 (4 ratings)](https://appshunter.io/ios/app/mental-math-soroban-abacus/id6476421167/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | **75.0% of reviews** | 22.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 56 MB |
| Requires iOS | **8.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mako Muraoka Yudai Muraoka](https://appshunter.io/developer/1069915436) | [TAKAYUKI HASHIMOTO](https://appshunter.io/developer/1689527181) |

## What reviewers say

### 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


### 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 |


## Frequently asked questions

### Is FLASH ANZAN (arithmetic) free?

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

### Is Mental Math free?

Mental Math is free to download, with in-app purchases available.

### Which has better reviews, FLASH ANZAN (arithmetic) or Mental Math?

Mental Math is rated higher. FLASH ANZAN (arithmetic) averages 3.7 out of 5 from 3 ratings, while Mental Math averages 4.3 from 4 ratings.

### Do FLASH ANZAN (arithmetic) or Mental Math have ads?

Mental Math shows ads; FLASH ANZAN (arithmetic) does not.

### Which is updated more often, FLASH ANZAN (arithmetic) or Mental Math?

FLASH ANZAN (arithmetic) ships an update monthly, and Mental Math every 8 days. Most recently, FLASH ANZAN (arithmetic) was updated on October 24, 2026 and Mental Math on October 25, 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.*