# Anzan19x19 vs シンプルFLASH暗算

The clearest difference is update cadence: Anzan19x19 at every 3 days against シンプルFLASH暗算's fortnightly. Anzan19x19 also leads on iOS requirement (12.0 vs 15.6). 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.

Anzan19x19 ships an update every 3 days, シンプルFLASH暗算 fortnightly. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Anzan19x19 | シンプルFLASH暗算 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 38 MB | 4 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hajime Hotaka](https://appshunter.io/developer/1495063369) | [TSUKASA YONAHA](https://appshunter.io/developer/1835823966) |

## What reviewers say

### Anzan19x19

[App page](https://appshunter.io/ios/app/anzan19x19/id1495063370)

**Features:** macOS Compatibility

**In-app purchases:** none


### シンプルFLASH暗算

[App page](https://appshunter.io/ios/app/flash/id6751562239)

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

**In-app purchases:** none


## Frequently asked questions

### Is Anzan19x19 free?

Anzan19x19 is free to download, with no in-app purchases.

### Is シンプルFLASH暗算 free?

シンプルFLASH暗算 is free to download, with no in-app purchases.

### Do Anzan19x19 or シンプルFLASH暗算 have ads?

Both Anzan19x19 and シンプルFLASH暗算 show ads.

### Which is updated more often, Anzan19x19 or シンプルFLASH暗算?

Anzan19x19 ships an update every 3 days, and シンプルFLASH暗算 fortnightly. Most recently, Anzan19x19 was updated on October 8, 2026 and シンプルFLASH暗算 on October 18, 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.*