# こどもクロック2 vs DisasterPreparednessDrillBook

The clearest difference is price: DisasterPreparednessDrillBook at Free against こどもクロック2's $0.49. DisasterPreparednessDrillBook also leads on update cadence (every 3 days vs every 15 months). こどもクロック2's advantage is iOS requirement (12.0 vs 16.1). On ads, in-app purchases and device support there is nothing between them.

DisasterPreparednessDrillBook is free to download; こどもクロック2 costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

こどもクロック2 ships an update every 15 months, DisasterPreparednessDrillBook every 3 days. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | こどもクロック2 | DisasterPreparednessDrillBook |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/2/id1071325802/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 37 MB | 89 MB |
| Requires iOS | **12.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) | [RESEARCH CENTER FOR REGIONAL DISASTER MANAGEMENT, IWATE UNIVERSITY](https://appshunter.io/developer/1816349496) |

## What reviewers say

### こどもクロック2

[App page](https://appshunter.io/ios/app/2/id1071325802)

This app helps children learn to tell time with interactive clock faces and engaging quizzes. It offers multiple modes for hands-on exploration, reading practice, and time-setting challenges. The app can also function as a digital desk clock.

**Highlights:** Interactive clock faces, Time-telling quizzes, Adjustable clock hands, Digital desk clock mode, Multiple learning modes

**In-app purchases:** none


### DisasterPreparednessDrillBook

[App page](https://appshunter.io/ios/app/disasterpreparednessdrillbook/id6746351170)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is こどもクロック2 free?

こどもクロック2 costs $0.49, with no in-app purchases.

### Is DisasterPreparednessDrillBook free?

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

### Do こどもクロック2 or DisasterPreparednessDrillBook have ads?

Neither こどもクロック2 nor DisasterPreparednessDrillBook shows ads.

### Which is updated more often, こどもクロック2 or DisasterPreparednessDrillBook?

こどもクロック2 ships an update every 15 months, and DisasterPreparednessDrillBook every 3 days. Most recently, こどもクロック2 was updated on September 23, 2026 and DisasterPreparednessDrillBook on September 20, 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.*