# わかる！算数 小学３年【上】 vs こどもクロック2

The clearest difference is price: こどもクロック2 at $0.49 against わかる！算数 小学３年【上】's $9.99. こどもクロック2 also leads on device support (3 vs 1) and iOS requirement (12.0 vs 15.0). On rating, ratings volume, update cadence and ads there is nothing between them.

わかる！算数 小学３年【上】 costs $9.99 and こどもクロック2 $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for わかる！算数 小学３年【上】 against 5.0 for こどもクロック2. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

わかる！算数 小学３年【上】 ships an update every 10 months, こどもクロック2 every 15 months. The most recent releases landed on June 5, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | わかる！算数 小学３年【上】 | こどもクロック2 |
| --- | --- | --- |
| Price | $9.99 | **$0.49** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/id684069073/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/2/id1071325802/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 15 months |
| Monetization | Paid | Paid |
| Size | 68 MB | 37 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [がくげい](https://appshunter.io/developer/415230275) | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) |

## What reviewers say

### わかる！算数 小学３年【上】

[App page](https://appshunter.io/ios/app/id684069073)

This app offers a comprehensive math curriculum for third graders, covering the first half of the academic year. It features animated lessons with full voiceovers and interactive drill exercises to reinforce learning. Designed for self-study, it aligns with national educational standards and has been adopted in various educational settings.

**Highlights:** Covers first half of 3rd-grade math curriculum, 28 units, 56 corners of content, Animated lessons with full voiceovers, Interactive drill exercises, Progress tracking with clear indicators, Aligned with national curriculum standards

**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 わかる！算数 小学３年【上】 free?

わかる！算数 小学３年【上】 costs $9.99, 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.

### Which has better reviews, わかる！算数 小学３年【上】 or こどもクロック2?

わかる！算数 小学３年【上】 and こどもクロック2 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do わかる！算数 小学３年【上】 or こどもクロック2 have ads?

Neither わかる！算数 小学３年【上】 nor こどもクロック2 shows ads.

### Which is updated more often, わかる！算数 小学３年【上】 or こどもクロック2?

わかる！算数 小学３年【上】 ships an update every 10 months, and こどもクロック2 every 15 months. Most recently, わかる！算数 小学３年【上】 was updated on June 5, 2026 and こどもクロック2 on September 7, 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.*