# ローマ字チャレンジ vs こどもクロック2

The clearest difference is in-app purchases: こどもクロック2 at none against ローマ字チャレンジ's 4. こどもクロック2 also leads on price ($0.49 vs $2.99) and iOS requirement (12.0 vs 15.0). ローマ字チャレンジ's advantage is update cadence (every 5 months vs every 15 months). On ads and device support there is nothing between them.

ローマ字チャレンジ costs $2.99 and こどもクロック2 $0.49 up front. ローマ字チャレンジ sells 4 one-off in-app purchases. こどもクロック2 asks for nothing beyond the download.

ローマ字チャレンジ ships an update every 5 months, こどもクロック2 every 15 months. The most recent releases landed on October 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | ローマ字チャレンジ | こどもクロック2 |
| --- | --- | --- |
| Price | $2.99 | **$0.49** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/2/id1071325802/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 61.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 15 months |
| Monetization | — | Paid |
| Size | 78 MB | 37 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gloding Inc.](https://appshunter.io/developer/780228385) | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) |

## What reviewers say

### ローマ字チャレンジ

[App page](https://appshunter.io/ios/app/id500133123)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| グルメチャレンジ | $0.99 | one-time |
| のりものチャレンジチャレンジ | $0.99 | one-time |
| フルーツチャレンジ | $0.99 | one-time |
| こんちゅうチャレンジ | $0.99 | one-time |


### 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


## Frequently asked questions

### Is ローマ字チャレンジ free?

ローマ字チャレンジ costs $2.99, and also offers in-app purchases.

### 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.

### Do ローマ字チャレンジ or こどもクロック2 have ads?

Neither ローマ字チャレンジ nor こどもクロック2 shows ads.

### Which is updated more often, ローマ字チャレンジ or こどもクロック2?

ローマ字チャレンジ ships an update every 5 months, and こどもクロック2 every 15 months. Most recently, ローマ字チャレンジ was updated on October 30, 2026 and こどもクロック2 on October 9, 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.*