# Nan Nan Drill vs こどもクロック2

The clearest difference is price: Nan Nan Drill at Free against こどもクロック2's $0.49. Nan Nan Drill also leads on iOS requirement (9.3 vs 12.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Nan Nan Drill 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.

Nan Nan Drill ships an update every 12 months, こどもクロック2 every 15 months. The most recent releases landed on October 26, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Nan Nan Drill | こどもクロック2 |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| 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 12 months** | Every 15 months |
| Monetization | — | Paid |
| Size | 11 MB | 37 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DREAM ON LINE CO., LTD.](https://appshunter.io/developer/744835198) | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) |

## What reviewers say

### Nan Nan Drill

[App page](https://appshunter.io/ios/app/nan-nan-drill/id870297885)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Nan Nan Drill free?

Nan Nan Drill is free to download, with no 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 Nan Nan Drill or こどもクロック2 have ads?

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

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

Nan Nan Drill ships an update every 12 months, and こどもクロック2 every 15 months. Most recently, Nan Nan Drill was updated on October 26, 2026 and こどもクロック2 on November 2, 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.*