# kids+clock（キッズプラスクロック） vs フラッシュ暗算練習

The clearest difference is ads: kids+clock（キッズプラスクロック） at none against フラッシュ暗算練習's shown. フラッシュ暗算練習's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

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

kids+clock（キッズプラスクロック） ships an update every 6 days, フラッシュ暗算練習 every 9 days. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | kids+clock（キッズプラスクロック） | フラッシュ暗算練習 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 9 days |
| Size | 35 MB | 28 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [kids plus co.](https://appshunter.io/developer/1517929309) | [Katsuyuki Hayashi](https://appshunter.io/developer/1597263179) |

## What reviewers say

### kids+clock（キッズプラスクロック）

[App page](https://appshunter.io/ios/app/kids-plus-clock/id1116622610)

**In-app purchases:** none


### フラッシュ暗算練習

[App page](https://appshunter.io/ios/app/id6477322637)

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

**In-app purchases:** none


## Frequently asked questions

### Is kids+clock（キッズプラスクロック） free?

kids+clock（キッズプラスクロック） is free to download, with no in-app purchases.

### Is フラッシュ暗算練習 free?

フラッシュ暗算練習 is free to download, with no in-app purchases.

### Do kids+clock（キッズプラスクロック） or フラッシュ暗算練習 have ads?

フラッシュ暗算練習 shows ads; kids+clock（キッズプラスクロック） does not.

### Which is updated more often, kids+clock（キッズプラスクロック） or フラッシュ暗算練習?

kids+clock（キッズプラスクロック） ships an update every 6 days, and フラッシュ暗算練習 every 9 days. Most recently, kids+clock（キッズプラスクロック） was updated on November 6, 2026 and フラッシュ暗算練習 on November 4, 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.*