# FLASH ANZAN (arithmetic) vs Anzan

The clearest difference is update cadence: FLASH ANZAN (arithmetic) at monthly against Anzan's every 3 months. FLASH ANZAN (arithmetic) also leads on iOS requirement (8.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FLASH ANZAN (arithmetic) ships an update monthly, Anzan every 3 months. The most recent releases landed on November 6, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | FLASH ANZAN (arithmetic) | Anzan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/flash-anzan-arithmetic/id1282325066/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 17 MB | 24 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mako Muraoka Yudai Muraoka](https://appshunter.io/developer/1069915436) | [Tomohiro Kamiyama](https://appshunter.io/developer/1445665207) |

## 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


### Anzan

[App page](https://appshunter.io/ios/app/anzan-brain-series/id1625451220)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FLASH ANZAN (arithmetic) free?

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

### Is Anzan free?

Anzan is free to download, with no in-app purchases.

### Do FLASH ANZAN (arithmetic) or Anzan have ads?

Neither FLASH ANZAN (arithmetic) nor Anzan shows ads.

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

FLASH ANZAN (arithmetic) ships an update monthly, and Anzan every 3 months. Most recently, FLASH ANZAN (arithmetic) was updated on November 6, 2026 and Anzan on October 6, 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.*